Rename test.c to test_basic.c with corresponding executable name change. (#923)

* Rename test.c to test_basic.c with corresponding executable name change.

* Fix Makefile, tests/Makefile to comprehend renamed test program. See issue #922

* Fix XCode project to comprehend renamed test program.  See issue #922

* Rename python test.py to test_basic.py to parallel C test name.  See issue #922

* Rename ocaml test.ml to test_basic.ml to parallel C test name.  See issue #922

* Fix MSVC project definitions to comprehend renamed test program.  See issue #922
15 files changed