Test Chaste/PyChaste Diff

[kwabenantim]

Summary
Add new tests:

• Flag new classes/methods in Chaste C++ for wrapping in Python bindings (or added to an exclusion list).
• Flag new methods added to existing classes.
• Flag classes/methods that have been removed from Chaste for removal from PyChaste as well.
• Flag modifications in Chaste (e.g. changed method signatures, scope changes from public to private etc.) as needing updates to PyChaste bindings.