ci: Add CI support and QA checks

Added CI support and following QA checks:

* Check if the dependencies in listed in `.gitmodules` are included in
`manifest.yml` along with mandatory attributes
* TPIP: Check `.gitmodules` and `source files` any changes in URLs and
highlight those changes in the merge request
* Check source files for mandatory license attribute

Add CI support to bsp repository. In addition, add TPIP check.

Signed-off-by: Devaraj Ranganna <devaraj.ranganna@arm.com>