Implement surface names

Implement surface names

* request_surface(name: string) -> id: int.
* activate_surface(name: string).
* names will be mapped to their respective layers by use of the layers'
  surface rola match, a regex.
* the generated IDs are global and not reused.
* allow wp-request to use -p, disable use of pygments even if found.

Things missing:
* surface removal does not remove already established mappings/names.
* Mostly untested.

Signed-off-by: Marcus Fritzsch <marcus_fritzsch@mentor.com>