New files introduced as part of a new testing system.
Updates to these files so that they compile and link proplerly.
Updated Makefile to build new regression test program and added a header file for the test_mesh file.
Added removal of the reg_tests program to make clean.
Updated test_mesh function to return an int for pass/fail result to be used by the reg_tests driver.
Added the other regression tests to the new test driver.
Removed deprecated test files
Removed deprecated test builds from Makefile
Added run_tests script to the Makefile and updated run_tests to use the new test driver, reg_tests.
Added removal of .h5m test files to make clean.
Updated test-driver to take individual files for now. Difficult to fully clear MOAB instances for some reason...
Added an ignore for the test file tarball
Updates to the Readme with instructions on building and running the tests
Small corrections to Readme