Sort lines and functions in AST.hs
Add sim.c
Add 6502.txt for reference
Sorted functions in Parser.hs
Don't sort opcode pattern matches (conform to 6502.txt)
Ignore sim
Remove unused constant
Add AND
Hlint suggested cleanup
Add ASL
Moved beq, jsr and jmp in Parser.hs
Add BCC
Add BCS
Add translate hints for BCC and BCS
Rename `dec` parser to `decimal` to avoid confusion with DEC
Add remaining statements
Allow program offsets
Disregard leading spaces and comments
Allow lowercase statements