Reworks settings to easily include/exclude symbols for git code lens

Converts type/const into string enums
Refactors command initialization

Updates changelog

Changes ${path} token to be the full path
Adds relative formatting support

Adds auto-update for working trree
Fixes issues with working tree status

Hides working changed files behind insiders flag
Unhides Changed Files node from behind insiders flag
Adds changed file count to Changed Files node label
Adds icon to Changed Files node
Adds upstream branch to upstream status nodes
Sorts files in the Changed Files node

Adds new contributor to readme

Switches to use HoverProvider for hovers in file blames

Optimizes annotation computation (cache by commit)

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

Adds setting to show remote tracking branch in custom view

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

Updates dependencies

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

Fixes #118 - stopped working on latest insiders build

Adds stash explorer toggle command

Adds a better description to blame.line.enabled to be clearer about its behavior
Adds a better description to codeLens.enabled to be clearer about its behavior