Adds don't show again option to invalid git version notification

Adds diff with next command
Fixes #45 - Keyboard Shortcut collision with Project Manager
Preps v2.11.2

Splits showQuickCommitDetails into showQuickCommitDetails and showQuickCommitFileDetails
Adds closeUnchangedFiles command
Adds openChangedFiles command
Adds diffDirectory command
Adds contextual description to the `go back` commands
Fixes #44 by adding a warning message about Git version requirements
Fixes intermittent errors when adding active line annotations
Fixes intermittent errors when opening multiple files via quick picks
Updates dependencies
Preps v2.11.0

- Status bar blame information will hide
  - CodeLens change to a `Cannot determine...` message and become unclickable
  - Many menu choices and commands will hide
Fixes #36 - Blame information is invalid when a file has unsaved changes
Fixed #38 - Toggle Blame Annotation button shows even when it isn't valid
Preps v2.9.0

Adds data formatting option to blame annotations
Preps v2.8.2