Introduces base class and interface for the factories

Created by: stefanoborini

Introduces a base class for the factories.

Fixes #49 (closed)

Created by: codecov[bot]

Codecov Report

Merging #158 into master will increase coverage by 0.12%. The diff coverage is 96.05%.

@@            Coverage Diff            @@
##           master    #158      +/-   ##
=========================================
+ Coverage   92.17%   92.3%   +0.12%     
=========================================
  Files          38      41       +3     
  Lines        1010     962      -48     
  Branches       66      67       +1     
=========================================
- Hits          931     888      -43     
+ Misses         75      70       -5     
  Partials        4       4

Impacted Files	Coverage Δ
force_bdss/mco/i_mco_factory.py	65% <100%> (-1.67%)
force_bdss/ui_hooks/base_ui_hooks_factory.py	100% <100%> (ø)
...rce_bdss/mco/parameters/i_mco_parameter_factory.py	100% <100%> (ø)
...on_listeners/base_notification_listener_factory.py	100% <100%> (ø)
...ation_listeners/i_notification_listener_factory.py	71.42% <100%> (ø)
force_bdss/data_sources/i_data_source_factory.py	77.77% <100%> (+2.77%)
...orce_bdss/data_sources/base_data_source_factory.py	100% <100%> (ø)
force_bdss/ui_hooks/i_ui_hooks_factory.py	80% <100%> (+6.66%)
force_bdss/core/base_factory.py	100% <100%> (ø)
force_bdss/api.py	100% <100%> (ø)
... and 6 more

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