rename assembly to IR
ignore .ws & .wsir
now pyws can pass the offical examples
1) add debug & traceall switches to CLI interface
2) add --IR to CLI interface
3) add ir_compiler to pyws
4) add dump——heap tp pyws
5) now CLI `--style`'s default value set to ORIGIN
add offical_example's downloader for test use
add traceall switch and a working debug mode
change CLI default style to ORIGIN
add testing for IR-compiler
add debug supporting for RNUM & RCHR