Conversion from/to float and double, multiplication, division and reciprocation are implemented and should be working properly.

The next big TODOs are addition, substraction and rounding. Then advanced operations like sqrt, fma, etc. As part of the posit spec.

I've been working alone on that project, this being my first time working with floating point representation. I'm happy I could even get to that stage, and I hope someone can pick up my work and start contributing.