Add support for control_for_each

[DilemmaGX]

I ran into this:

no decompiler implemented for stmt control_for_each

So some scratchers might use hacked blocks, I think sb2gs should handle the syntax corectly either by using implemented foreach methods or generating local variable

[SameOldMistakes]

decompile_stmt.txt
replace decompile_stmt.py with the fix above
it should work