Cleanup of many components of the code.

Many unwraps, expects, and panics removed or handled.

More rustification of the codebase.

Squashed commit of the following:

commit 80c6483cf8c819496a7b781f9e3a149d1f18d5fe
Author: Henry <henry@azule.info>
Date:   Fri Feb 10 20:36:57 2023 -0600

    add other parsed result option

commit 412d92ae585e7bf194697f5282dbc045e448bace
Author: Henry <henry@azule.info>
Date:   Fri Feb 10 19:06:34 2023 -0600

    fix some panics

commit 9108d3e931aadec00fc0bf346ebc52d24e5d8146
Author: Henry <henry@azule.info>
Date:   Fri Feb 10 18:56:30 2023 -0600

    clippy --fix

commit 8cd89d314323f54f342f15fc73297b62d418ac79
Author: Henry <henry@azule.info>
Date:   Fri Feb 10 18:55:45 2023 -0600

    some more cleanup in aztec

commit fb7f9242e273b85a4bb212f22a185a0dcbfafc36
Author: Henry <henry@azule.info>
Date:   Fri Feb 10 18:19:54 2023 -0600

    cleanup root

commit 4fb7c0639830869149332b29be789e891eade3e7
Author: Henry Schimke <henry@azule.info>
Date:   Fri Feb 10 16:50:15 2023 -0600

    format

commit 3ac271af657b25fbe5ee39cbdf8859e5aa38ea41
Author: Henry Schimke <henry@azule.info>
Date:   Fri Feb 10 16:43:14 2023 -0600

    clippy --fix

commit 0c5b4c1477159db93a9da9645039f51cd1a7c574
Author: Henry Schimke <henry@azule.info>
Date:   Fri Feb 10 16:04:31 2023 -0600

    qrcode cleanup complete

commit 70c1d107cc672e45d46567c650c46fece7e7da9c
Author: Henry Schimke <henry@azule.info>
Date:   Fri Feb 10 13:28:25 2023 -0600

    clippy --fix

commit e13263d0f1f2a13dbb59b6e60d8b871a32babc92
Author: Henry Schimke <henry@azule.info>
Date:   Fri Feb 10 13:27:44 2023 -0600

    qrcode detector cleanup

commit f7f2855099e469fe1091868c6099196705d0ae83
Author: Henry Schimke <henry@azule.info>
Date:   Fri Feb 10 11:48:13 2023 -0600

    qrcode decoder

commit bdbaaba597b3479639c2ed3726465a69e3004471
Author: Henry Schimke <henry@azule.info>
Date:   Fri Feb 10 11:13:18 2023 -0600

    clippy --fix

commit fd6dbcaeb1f45dc91ae98f0e7c58aad48d67df78
Author: Henry Schimke <henry@azule.info>
Date:   Fri Feb 10 11:12:28 2023 -0600

    pdf417 cleanup complete

commit 7bbd47604c2639a5eb61bdb5533e71be3bce95a1
Author: Henry Schimke <henry@azule.info>
Date:   Fri Feb 10 10:39:28 2023 -0600

    clippy --fix

commit 8f4962b7bb5f133524fe4d3d4948e5672a88c545
Author: Henry Schimke <henry@azule.info>
Date:   Fri Feb 10 10:39:00 2023 -0600

    cleanup on pdf417 hie

commit 254c8243953776d3c8704dd81529aadd05d5a94e
Author: Henry <henry@azule.info>
Date:   Fri Feb 10 02:51:21 2023 +0000

    partway through pdf417 hle

commit d4a5b00fde8c0282b0c6e4175a21c1e111b11533
Author: Henry <henry@azule.info>
Date:   Wed Feb 8 21:35:25 2023 +0000

    clippy --fix

commit 2bd4a8e218aa963a88997b50bc5a198f9a88205e
Author: Henry <henry@azule.info>
Date:   Wed Feb 8 21:31:55 2023 +0000

    pdf417 decode and detect cleanup

commit 05130ac54a72c2303045d64507bf6185aa74e531
Author: Henry Schimke <henry@azule.info>
Date:   Tue Feb 7 08:06:25 2023 -0600

    at decodeTextCompaction in decoded_bit_straem_parser

commit 924c023a7d2339dfffa6ef0c4a805fb192576796
Author: Henry Schimke <henry@azule.info>
Date:   Mon Feb 6 18:22:02 2023 -0600

    clippy --fix

commit 5cfb81a885c22b4b5ec937a79be31d0815def211
Author: Henry Schimke <henry@azule.info>
Date:   Mon Feb 6 18:20:22 2023 -0600

    oned cleanup

commit 0649b64854baf56a8e3314728d4f6cf4063db8b2
Author: Henry Schimke <henry@azule.info>
Date:   Mon Feb 6 11:47:28 2023 -0600

    rss cleanup

commit 2d3127898fc11f7e65d590e983cda799b798b646
Author: Henry Schimke <henry@azule.info>
Date:   Mon Feb 6 10:19:56 2023 -0600

    multi cleanup

commit 7e8b43a159083a2096123e6204d4d1d359c59981
Author: Henry <henry@azule.info>
Date:   Sun Feb 5 21:41:59 2023 -0600

    cargo fmt

commit df8285e8da07b4bffd48ca6e596de3f010eb8d9e
Author: Henry <henry@azule.info>
Date:   Sun Feb 5 21:41:29 2023 -0600

    maxicode cleanup

commit a51f923a14016eb416ca202b2194258808dde3e7
Author: Henry <henry@azule.info>
Date:   Sun Feb 5 21:27:57 2023 -0600

    cargo fmt

commit 332d7eef4a25318611025a3fcb0b70c604d917be
Author: Henry <henry@azule.info>
Date:   Sun Feb 5 21:27:48 2023 -0600

    cleanup datamatrix

commit eb2311c476a9c9993f271ab6cf9fd359aedca26f
Author: Henry <henry@azule.info>
Date:   Sun Feb 5 21:27:26 2023 -0600

    cargo clippy --fix

commit 2abaa4c51d287f619d4c7a438f85ba2a30f159cf
Author: Henry <henry@azule.info>
Date:   Sun Feb 5 19:13:02 2023 -0600

    finish cleanup in parsers

commit 716aa2fbf728716cff36657a5fd80e7bca5276b7
Author: Henry Schimke <henry@azule.info>
Date:   Sun Feb 5 17:44:56 2023 -0600

    cleanup continues

commit 7d843788a49fa9cc82c4616d226c0f882e73612b
Author: Henry Schimke <henry@azule.info>
Date:   Sun Feb 5 15:15:09 2023 -0600

    common cleanup

commit fd251866c68f22d450dd428c93d7a3620bf1be27
Author: Henry Schimke <henry@azule.info>
Date:   Sun Feb 5 10:24:54 2023 -0600

    cleanup reedsolomon

commit 132e27ed1468f5c1ce998516ff5a00687217c3e6
Author: Henry Schimke <henry@azule.info>
Date:   Sun Feb 5 09:52:04 2023 -0600

    make MathUtils more generic

commit d8352b7fff4cb4f9ecc8e8a969710d26ef410e8b
Author: Henry Schimke <henry@azule.info>
Date:   Sun Feb 5 09:29:33 2023 -0600

    cleanup some string handling in ResultParser

    There may still be some edge cases where multi-byte characters break the parser

src/datamatrix/encoder/ascii_encoder.rs

@@ -31,12 +31,12 @@ impl Encoder for ASCIIEncoder {
                     .getMessage()
                     .chars()
                     .nth(context.pos as usize)
-                    .unwrap(),
+                    .ok_or(Exceptions::IndexOutOfBoundsException(None))?,
                 context
                     .getMessage()
                     .chars()
                     .nth(context.pos as usize + 1)
-                    .unwrap(),
+                    .ok_or(Exceptions::IndexOutOfBoundsException(None))?,
             )? as u8);
             context.pos += 2;
         } else {