Use OpenAPI to bindings script from 5G-MAG/rt-common-shared repository. about rt-5gms-application-server

[davidjwbbc]

The location is due to the rt-common-shared submodule only having example files which were moved from the docs directory in this repository to rt-common-shared. So preserving the examples under docs seemed sensible. The rt-common-shared submodule now contains the helper scripts too, whiich means the location of this submodule should probably move out of the docs directory.

I would suggest:

1. Move docs/rt-common-shared to external/rt-commonm-shared
2. Modify pyproject.toml to distribute the examples from external/rt-common-shared/5gms/examples/* with the other docs.
3. Add external/rt-common-shared as a recursive include in the MANIFEST.in
4. Make build_scripts/generate_openapi use the common script from external/rt-common-shared/5gms/scripts/generate_openapi.
5. Rename build_scripts/generate_openapi to build_scripts/generate_5gms_as_openapi to avoid confusion between the two scripts.
6. Modify build_scripts/backend.py to use the renamed script.

[rjb1000]

Seems a bit unintuitive to import the submodule under docs, @davidjwbbc.

[rjb1000]

Sounds like a good plan, @davidjwbbc.