A library for performaing math on number 'arrays' in binaries.

Most functions include a _r version to be used after a number array was 'ralized' (as in missing values were filled)

This branch is work in progress to add decimal floating point support.

Remaining issues

• We need to agree on final number encoding, potentialy using type part for exponent
• Add reading and writing decimal to/from a bitstring
• Add quick test coverage for decimal lists
• Ensure proper decimal algebra be c level unit tests
  • I am still experiencing some broken result from operation on 2 decimals with different exponent
• Check performance and maybe add some optimisations