Improve tags synchronization

[axel3rd]

Currently, standlone tags sync are done when:

• No branches sync
• Number of tags differs between from/to

git-platforms-synchro/git_platforms_synchro.py

Lines 215 to 216 in fd51ee2

	# Sync tags if no branches updated and needed (nbr tags diff between "from" and "to")
	tag_updated = repo_tags_sync(args, clone_url_from, git_from, git_to, repo, branches_updated)

In case of new(s) tag(s) in "from" and same number of new(s) tag(s) created in "to" (but not the same), difference is 0 => No sync.

This difference should be improved (list content analyse).