[ModelicaSystem] suppress warnings

reduce the number of warnings issued by PyCharm

* unresolved references (in docstrings; due to old syntax based
  on non-class methods)
* suppress name schema warnings - upper letters in function names

Author: syntron

OMPython/ModelicaSystem.py

@@ -54,6 +54,7 @@ class ModelicaSystemError(Exception):
     pass
 
 
+# noinspection PyUnresolvedReferences,PyPep8Naming
 class ModelicaSystem:
     def __init__(self, fileName=None, modelName=None, lmodel=None, commandLineOptions=None,
                  variableFilter=None, customBuildDirectory=None, verbose=True, raiseerrors=False,