* Harmonised memory region/share finder/creator APIs.
* Moved .found() to optional object finders.
* Added truth test operator to optional object finders.
* Fixed things that were testing .found() on required object finders.
* Improved Doxygen API documentation.
-dec8.cpp: Moved csilver to its own state class.
-docs: Added some notes about setting up and using MSYS2.