Check if grounded

[taylorhansen]

When a pokemon is not grounded, certain things can be prevented from happening. This can happen due to an item, ability, field condition, volatile status, or move. Track all of these carefully and add a helper property Pokemon.grounded to check this. May also be useful to add this to an active pokemon's array data when being processed by the neural network.

[taylorhansen]

The following conditions have to be tracked first:

• Gravity (Track Gravity field condition #19)
• Ingrain (Track Ingrain status #20)
• Smack Down (Track Smack Down move #21)
• Gastro Acid (Track Gastro Acid move #22)
• Roost (Track Roost move #23)
• Magnet Rise (Track Magnet Rise move #24)
• Embargo (Track Embargo #27)