The compute graph hierarchy (Python and C++) has been modified.
It will break the code using the CG and the include and import will
have to be modified.
New function prepareForRunning is needed in CG nodes even if not used in
static mode. Without this function, code using compute graph won't build.
- Add GitHub pack-index branch as pack URL
- Add GitHub repository to PDSC file
- Enhance gen_changelog to put specific download URLs to each release in pdsc format
- Enhance workflow to update pack-index branch