Removed unused grammar rules.
stmt assign fix - on the right side can be expression not statement
stmt can also be empty
factor fix - function call can have multiple parameters - list of expressions separated by comma
ordinal type can by multi-range
Fixed array variable - instead of statements in the [] must be expressions.
Fixed array variable assignment.
Fixed multiple array index.
Implemented record in the structural type - this should not be obligatory.
Fix error in the previous exercise - mistype in the for direction type constant.
Included generated files.
Added test scripts which runs mlc.exe on all test files.