Convert many manual cedet tests to ert

Convert many manual cedet tests to ert

* test/manual/cedet/cedet-utests.el
(cedet-files-utest): Move test from here...
* test/lisp/cedet/cedet-files-tests.el: ...to this new file.

* test/manual/cedet/srecode-tests.el
(srecode-document-function-comment-extract-test): Move test from
here...
* test/lisp/cedet/srecode/document-tests.el: ...to this new file.

* test/manual/cedet/cedet-utests.el
(inversion-unit-test): Move test from here...
* test/lisp/cedet/inversion-tests.el: ...to this new file.

* test/manual/cedet/semantic-tests.el
(semantic-gcc-test-output-parser): Move test from here...
* test/lisp/cedet/semantic/bovine/gcc-tests.el: ...to this new file.

* test/manual/cedet/semantic-tests.el
(semantic-test-data-cache): Move test from here...
* test/lisp/cedet/semantic/fw-tests.el: ...to this new file.