Add plural _INCLUDE_DIRS _LIBRARIES find cmake variables. Add gitignore file to ignore bin, build lib directories

Modified the necessaries files to save the headers, the library and all the related files on the subdirectory iri/<package_name>

Minor changes in the ReadMe.md file for proper display.

See merge request !1

GIT pages only generated for the master branch.

Updated the ReadMe.md file with information from the main.dox file.
Removed the main.dox file and used the ReadMe file as the main page of the documentation.

  * test code with google tests
  * memory checks with valgrind
  * code coverage of test
Solved a bug in the CMutex class destructor.

 - Correcting some typos

Solved a problem with timeout = 0 in the wait functions. Before, it got blocked with infinite timeout, now, it just checks the current state of the events and return immediatelly.

Now a new activation is necessary to wake each of the waiting threads.

Modified the main CMakeLists.txt to set the compiler flags for the C++ compiler instead of the C compiler.
Solved some compilation warnings that appeared.