Updates to latest vscode engine

Adds setting to show remote tracking branch in custom view

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

Adds Open File in Remote command to History custom view item

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

Updates custom view when repo changes (brute force for now)

Adds Stash Changes command to SCM view items

Updates dependencies

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

Adds "progress" state to file annotation command

Fixes #118 - stopped working on latest insiders build

Adds stash explorer toggle 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 templating support to explorer views

Adds refresh commands for explorer views
Adds context menu commands to both explorer views

Fixes newly detected typescript errors