move ansi escape parser to outta.parser module

[milahu]

i suggest we move the ansi parser to https://github.com/abingham/outta

see def _parser_fsm and def feed in pyte/streams.py
these are similar to def _parser_fsm and def feed in outta/parser.py

the question is ... is the parser alone useful enough to justify a separete module?
i guess the answer is no. in that case, outta should be deprecated in favor of pyte

[milahu]

closing

outta should be deprecated in favor of pyte

[abingham]

See also #147 where I make roughly the same proposal.