First version of iteration

The asm has not been tested.
Moved the outputs .yvm et .asm into the folders yvm/ and asm/
Refactor the const parsing

Moved functions from tabIdent to Constante.
Also renamed them.

Minor update on launchTest.py to improve readability
Refactor variable parsing.

Now in the Variable class.
Conditional
Linux update ~
Implemented stacks for iteration & conditional.
Still need to test the asm output to be sure
Update readme.md
readme, again
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