OrgGenerator support for multiple managed orgs

- hardcoded list of managed github orgs
- added 'org' property to WG charter, defaults to cloudfoundry
- TOC members get org admins in all managed orgs
- WG leads of all managed orgs get write access to community repo
  using additional wg-leads-<org> teams in cloudfoundry org
- name of org where the community repo lives is derived from TOC WG (default: cloudfoundry)

Author: stephanme

.gitignore

@@ -3,6 +3,6 @@ toc/elections/2021/private.csv
 /.secrets
 .vscode
 __pycache__
-cloudfoundry.out.yml
+orgs.out.yml
 branchprotection.out.yml
 /.idea