adds int literal
adds float literal
TODO define to todo function
adds string and char literal to grammar
adds char and simple string litearl
val to var
impl string literal
complete striing literal
adds function literal grammar
adds comment skipper to default skipper
adds id to primary
adds function literal
adds incompleted function.apply
adds incompleted binary dump
complete function apply
fixes grammar: var under expr
try to impl type system
incomp initial type system
impl initial type system
adds Makefile