move relevant scripts to module

[dafnevk]

Some of the scripts in the root of this repository, such as run_srl.py, should be distributed together with the code in stroll. Move the relevant scripts into the stroll module, so that they can be run with, for example, python -m stroll.run_srl and the relevant logic can also be called from within python.

[dafnevk]

See this notebook , a lot of the code in this notebook can probably be wrapped into a more high-level function.