Summary:
These two functions encapsulate some code that commonly is repeated
through pyolian scripts.
With these, a minimal example (provided `src/scripts/pyolian` is in
the PYTHONPATH) could be done with:
```
import os
from pyolian import eolian
SCAN_FOLDER = os.path.join(eolian.in_tree_src_dir(), 'src', 'lib')
eolian_db = eolian.parse_folders(SCAN_FOLDER)
for cls in eolian_db.classes:
print(cls)
```
Reviewers: segfaultxavi, DaveMDS, felipealmeida
Reviewed By: felipealmeida
Subscribers: cedric, #reviewers, #committers, felipealmeida, brunobelo
Tags: #efl
Differential Revision: https://phab.enlightenment.org/D10589