Create probe classes for tests

Created by: martinRenou

Removed all mocks and custom classes to stress tests, and introduced more flexible probe classes. Also, remove all the plugins that were used for testing.

Created by: codecov[bot]

Codecov Report

Merging #101 into master will decrease coverage by 1.06%. The diff coverage is 66.66%.

@@            Coverage Diff             @@
##           master     #101      +/-   ##
==========================================
- Coverage   97.48%   96.41%   -1.07%     
==========================================
  Files          63       39      -24     
  Lines         953      697     -256     
  Branches       68       49      -19     
==========================================
- Hits          929      672     -257     
  Misses         21       21              
- Partials        3        4       +1

Impacted Files	Coverage Δ
force_bdss/core_evaluation_driver.py	88.05% <0%> (-7.26%)
force_bdss/core_mco_driver.py	91.04% <0%> (-4.27%)
...dss/tests/probe_classes/factory_registry_plugin.py	100% <100%> (ø)
force_bdss/factory_registry_plugin.py
force_bdss/bdss_application.py	93.75% <0%> (+6.25%)

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