Python/Vlang tests, colors, ...

Handy support for quick/small Python/Vlang tests with colors

Better pkg deps handling, automatic valgrind+gcov

Merge pull request #18 from nsauzede/f-fix-pkgs

Fix pkgs deps; bump version to 0.0.4

Enhanced source hierarchy, tests, NASM support..

Sources and output now reside under <project>/vade.
Where <project> is usually a git repo root.

First usable version with decent doc

v0.0.1

Add vade version (printed as 0.1)