- Configures Doxygen.
- Adds a source filter to do magic on our use of the preprocessor to do
constructor stuff to make Doxygen grok it better.
- Adds a convenience helper to the root Makefile.
- Adds a README.md to the root directory (and which Doxygem uses as its
"mainpage".
- Add several other documentative files.
- Currently using SVG for call graphs, though this may have a
load-time performance impact in browsers.
Change-Id: I25fc6fb5bf634319dcb36a7f0e32031921c125ac
Signed-off-by: Chris Luke <chrisy@flirble.org>