add doubleclick actions in resolve window
On the unresolved files a double click would initiate "tool resolve" or "internal:merge". It depends on whether "auto resolve" was checked before the merge was applied. If yes, then "tool resolve" If no, then "internal:merge"
On the resolved files a double click would initiate "diff to local".
See initial discussion here https://groups.google.com/forum/?hl=en&fromgroups=#!topic/thg-dev/A5JO9Fc2fpk