AnalogModule and DigitalModule classes still exist, at least until they are
refactored into the classes that use them.
Change-Id: I5544d5418822f19d54ba0a5d651e64fad8b7b10d
Made a toplevel directory for C++ and C++ tests
Change-Id: I4bc2074a7036ec7fe79568b411637a5bee9eb5b3
Added the C++ testing framework and one test
Change-Id: I1e80a1e16b251a49666820a9d4c8caa025da9785