CMake Interaction Update

Closes #6 (closed) , #8 (closed) .

• Allow the user to specify the Python interpreter to be used by the pystencils-sfg CMake module via a hint variable to the find module
• Allow the user to pass custom command line arguments to generator scripts through CMake
• Move the default output path for generated files to ${CMAKE_CURRENT_BINARY_DIR}/_gen/<target>/gen
• Allow the user to customize the output directory

docs/source/api/generation.rst

@@ -30,7 +30,3 @@ Categories, Parameter Types, and Special Values
 .. autoclass:: ClangFormatOptions
     :members:
 
-Option Descriptors
-------------------
-
-.. autoclass:: Option