* A legacy value is a config section with a single-line.
* These values may be read from the BasicConfig interface so
the deprecated Config class does not need to be exposed to
clients.
* Made Config class more testable.
Source files are split to place all unit test code into translation
units ending in .test.cpp with no other business logic in the same file,
and in directories named "test".
A new target is added to the SConstruct, invoked by:
scons count
This prints the total number of source code lines occupied by unit tests,
in rippled specific code and excluding library subtrees.
* Rename unity files
* Move some modules to new subdirectories
* Remove obsolete Visual Studio project files
* Remove obsolete coding style and TODO list
