Added From To As statement and test for it
New 'for loop' feature

- Refactored feature to piggyback the for loop grammar/generator code
- Added test for for x in a to b feature
Added list comprehension feature

- added [x to y] list generator
- added test for it
Merge branch 'iterateLoop' of https://github.com/rompetoto/kal into rompetoto-iterateLoop

Conflicts:
	source/generator.litkal
	source/grammar.litkal
	tests/for_statement.kal
cleanup for rompetoto-iterateLoop