Move bash -> python

Ananicy rewritten from scratch on Python3 for name of the great justice (joke).

That will give ananicy more flexibility also dramatically reduce CPU usage (with slightly increase in mem).

I drop pgrep usage.
For now ananicy will apply rule to pid,
if basename of running process is equal to "NAME=" in rule.

So:

• PGREP_ARGS - will be dropped.
• Some rules will not work, and must be ported to 2.X
• Some rules really depends on apply of regex on process cmdline,
  currently that not supported.

2.0.0 will be released, when it was ready.