dynlevy laws now survive save/restore & some more

Notes:
- Dynlevy laws now survive save/restore of game (!)
- Currently active levy law efficiency percentage is shown along with a description of the mechanic in tooltip form at the bottom of the Laws screen.
  - Despite my best efforts, I couldn't get the efficiency % to display directly on the (depressed) law button.  This is an open mystery.
  - Each dynlevy law is now separated into its own law group (for 64 total) for display purposes
- Count titles should now automatically default to ````dynlevy0_0```` without the need to set them as such upon scenario initialization.
- All actually references to laws' names are encapsulated by the code-generated portion now.  All the hand-written stuff abstracts this away.