* The bit procs defined over number values and openarray are now part of
the bitops2 module and use the more traditional LittleEndian indexing.
* Added BitSeq and BitArray types as defined in the ETH2 spec.
As much as I believe in the power of optimizing compilers, it turned
out that the use of forced inlining with templates still creates a
significant difference in the release builds of nim-faststreams.
