Add crystals models to the game

[EthicalSoftwareBot]

We have two kinds of crystals:

Effect: When a player picks up 1 variant of a crystal, they fly in different directions.

Set up the random system correctly: This variant appears on the sсene less often than the other and gives the player more crystals.

Models available here: Click me

[EthicalSoftwareBot]

Something is wrong, I do not see crystals in the game. We need to figure it out.