Unifies tag parsing to include msg, ref, & dates
Bumps required Git to 2.7.2
Adds more tag sorting options similar to branches

Fixes issue stash reveal button
Updates reveal|open in view icons
Adds gating to reveal methods

Makes git flags type safe

Cleans up navigation key support for git commands
Changes search git command to show a quick pick menu of commit commands
Adds navigation key support to search git commands to reveal commits
Removes incorrect multiselect of repos in search git command
Adds navigation key support to stash git commands to reveal stashes
Changes stash list git command picker to stay in context
Changes Show In View to be Open in Search Commits View
Changes Show In View to be Open in File History View
Adds Reveal in Repositories View command in commit quick picks
Changes commit quick pick commands (ordering, descriptions, etc)
Adds progress notification to revealCommit & reveal parent walking
Changes findNode to use a loop & canTraverse callback & adds cancelation
Changes findCommit to search for commit in all branches

Attempts to open the commit/stash in Repositories view if possible

Closes #410 - adds ability to search by multiple criteria
Adds ability to match case, match all, & use regex

Adds last commit date to branches

Giving up on better else/catch/finally formatting -- can't fight anymore
Switching to tabs for better accessibility
https://twitter.com/sh4na/status/1146837957200027648

Reworks generator types

Changes stash[Apply|Delete|Save] commands to use new git commands

Adds explicit directive for going back
Adds command error logging
Removes unneeded abort error

Adds arbitrary ref support to cherry-pick git command
Enhances the feedback when choosing an arbitrary ref

Consolidates more reusable logic into GitService

Changes upstream arrows

Fixes quickpick commands that open the working file

Neither of these cases worked with renamed files

Fixes diff w/ previous when there are no working file changes
Fixes broken status file commands