[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

@@ -293,6 +293,8 @@ def parse_simflags(simflags: str) -> dict[str, Optional[str | dict[str, str]]]:
         return simargs
 
 
+# TODO: use PyUnresolvedReferences?
+# noinspection PyPep8Naming, PyUnresolvedReferences
 class ModelicaSystem:
     def __init__(
             self,