Trying to move organize top level directory, this commit puts copies of python files in hindemith dir
More work to isolate python stuff in the hindemith dir
reformatted pyast.py indentation and other pycharm warnings
Reformat python code to have standard indentation
Reformat basic example python
Move C++ stuff into sub-directory.
Add setup and license stuff
Ignore pyc files
Make user backend.so is included in install package
have makefile move backend.so into hindemith package
More path games with hindemith
Comment out hindemith validate, requires 1.0
which is not the current distribution
 This causes a run-time error
update gitignore