1. Add Multi-Scanner test file for harbor is deployed with multi scanners;
2. Modify notary doc description;
3. Add paragraph for e2e-api-python-based-scripting-guide;
4. Fix delete project issue;
5. Remove count qoutas in nightly and modify some of it;
6. Add Trivy in git hub offline action;
Signed-off-by: danfengliu <danfengl@vmware.com>
