Fixes missing function errors for fq builtins
Add includes to fix some other missing function errors
Add COMPLETION_TIMEOUT env to increase comepletion timeout during test using -race
Rename buffer to binary. Still some work left what to call buffer/binary in decode code.
Document decode value and binary type
Fix proper unit padding for tobytes and add still undocumenated extra padding argument.
Add some additional binary tests
Now all regexp functions should work similar to string version for buffers.
Added scan_toend that works as scan but outputs buffer from match to end of buffer,
useful when trying to decode a format and you dont know or care to limit.
