Converts type/const into string enums
Refactors command initialization

Adds new open file revision command with annotation support

Optimizes annotation computation (cache by commit)

Combines same url into same remote
Adds a change event for custom remote providers
Adds a repo change event for custom remote providers

Adds openChangedFileChangesWithWorking to custom view
Removes unneeded context checks from custom view commands

Adds ability to provide a branch to open file in remote

Switches to use the new diffWith command

Adds Open Repository in Remote command to the Remote custom view items

Adds Open Branches in Remote command to the Branches custom view item
Adds Open Repository in Remote command to the Repository Status custom view item

Changes Stash Changes icon to a +

Adds Stash Changes command to SCM view items

Adds message when there are no stashes
Cleans up the stash explorer

Adds "progress" state to file annotation command

Rename Show File History in Explorer back to Open File History Explorer
Removes the git explorer view (for now)

Adds onDidChangeRepo event to GitService
Refreshes stash view when repo changes

# Conflicts:
#	src/commands/stashApply.ts

Adds command args copying when needed