* Added detection for buffer alignment to avoid memcpy.
* Added MD5 and SHA-1 support for XTRANSFORM_LEN to process blocks.
* Cleanups for consistency between algorithms and code commenting.
* Enhancement for NXP MMCAU to process more than one block at a time.
* Improved MMCAU performance: SHA-1 by 35%, SHA-256 by 20% and MD5 by 78%.
```
NXP K64 w/MMCAU after:
MD5 8 MB took 1.000 seconds, 7.910 MB/s
SHA 4 MB took 1.005 seconds, 3.644 MB/s
SHA-256 2 MB took 1.006 seconds, 2.306 MB/s
NXP K64 w/MMCAU before:
MD5 4 MB took 1.004 seconds, 4.450 MB/s
SHA 3 MB took 1.006 seconds, 2.670 MB/s
SHA-256 2 MB took 1.008 seconds, 1.913 MB/s
```
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