v0.9.3: whole math lib equipped

Changelog since latest minor version: changelog_0_9_3.md

(TLNR, really a lot of work...) Full Changelog since 0.6.0: v0.6.0...v0.9.3

This is released with all CPython Lib/math functions implemented,

and as extensions:

• some functions also support float32
• almost all can run under non-C like platforms (JavaScript, NimScript) and even nimvm (compile-time)