Inverse Mod needs to go first, to calculate the negated effectiveness.
Disguise goes second, to suppress effectiveness.
Delta Stream goes third, to weaken moves super-effective against Flying types.
Tar Shot goes last, to make its victim weak to Fire type moves.
This allows the existing test for Delta Stream with Tar Shot to pass.
Additionally a new test for Delta Stream with Inverse Mod now passes.
A test for Flying Press with Inverse Mod is also included.
This mostly serves to provide cleaner and more consistent field
naming. maxMove currently doesn't have boosts or effects to group
together but who knows what will be thrown at us via DLC, and being
symmetrical with zMoves is a nice.
The server now uses the same approach as the client of treating
cosmetic formes as real formes, as documented in `FORMES.md`.
This eliminates the need for the `.forme` and `.speciesid` properties
of `Pokemon`.
`pokemon.id` has also been removed: useful, since it turns out half
of its uses were bugs that should have used `pokemon.species.id`.
