PEP8 style algorithm API (#7909)

* feat: support snake-case style Python QCAlgorithm implementations

* feat: add unit tests and minor fixes

* feat: implement new BasePythonWrapper class for python wrappers.

Used to cache methods and contains invoke functionality

* feat: make python wrappers implement the new base class for pep8 style support

* feat: keep overriden methods in Algorithm Python Wrapper

* feat: add unit tests for custom models algorithms with PEP8 style

* Bump pythonnet version to 2.0.30

* fix bugs and address peer review

* Address peer review

* Minor revert

* feat: StubsIgnoreAttribute for ignoring members or classes by the stubs generator

* Minor fixes

* Minor fix

* Minor fix

* Bump pythonnet version to 2.0.31

* Added Greeks.Lambda_ alias of Lambda for python compatibility.

Remove unused method

Algorithm.Python/QuantConnect.Algorithm.Python.csproj

@@ -39,7 +39,7 @@
     <Compile Include="..\Common\Properties\SharedAssemblyInfo.cs" Link="Properties\SharedAssemblyInfo.cs" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="QuantConnect.pythonnet" Version="2.0.29" />
+    <PackageReference Include="QuantConnect.pythonnet" Version="2.0.31" />
   </ItemGroup>
   <ItemGroup>
     <Content Include="FundamentalUniverseSelectionAlgorithm.py" />
@@ -276,4 +276,4 @@
     </PostBuildEvent>
     <PackageLicenseFile>LICENSE</PackageLicenseFile>
   </PropertyGroup>
-</Project>
+</Project>