Add LICENSE file.

Update images from reveng site.

Add CRC-64/NVME from Greg Cook's catalogue.

Fix string escapes in getcrcs.

Prefer -1 in mincrc for parameters.

Add CRC-64/REDIS from Greg Cook's catalogue.

Permit a width=1 CRC (a parity check).

Fix detection of additional .def files in Makefile.

Replace unsigned char with uint8_t.

Add CRC-16/M17 from Greg Cook's catalogue.

Include any .def files in the code generation and testing.

Update CRCs, adding CRC-8/HITAG, CRC-32/MEF, and CRC-64/MS.

Fix bug in generating slice-by-four code.

Add option to use 32-bit words to crcall.

Simplify calculation of word shift.