Create ve.ui.Sequence which matches commands to typed text

Register two sequences:
- '<p>* ' creates a bullet list
- '<p>1. ' creates a numbered list (note this isn't '#' as that
  is MW-specific)

Bug: T53408
Change-Id: I6a4d71d845ecde460193466d9d8d12a0c9050c98
Merge "Create ve.ui.Sequence which matches commands to typed text"