Dot Pyxis Special

[ilAlecs]

How will this enhancement improve the game? Will add more diversity to the AoT Canon characters' abilities

Describe the solution you'd like Give Pyxis the ability to "summon" a cannon which he or others can use to kill titans or players.

Describe alternatives you've considered A way to imprement this would be:

1. Player presses the special button.
2. A flare is fired in the air
3. (Optional) A smoke cloud spawns and disperses quickly, inside of it spawns the cannon
4. Players can get onto the cannon, using the normal cannon mount animation.
5. As soon as the flare is fired a 45 second timer starts after which the cannon disappers letting out a bit of smoke, just like how it spawned. If the player is on when the countdown hits 0 the dismount animation is forcibly played.
6. After it is used a 1 minute 45 second cooldown is started before the ability can be used again.

Side Note: This ability should be able to be disabled by the MasterClient in the settings just how disabling Eren Titan works. If the disable Pyxis Cannon skill is on then Pyxis will use either the Levi skill or another generic special sword strike.

Contributor instructions (Do not modify)

1. Determine if the enhancement is compatible with existing features
2. If the idea is denied, please provide a reason and close the issue. If the idea is accepted, consult your team to do an estimation of effort. Remove the [PROPOSAL] name and label.
3. Move the issue to the Future Milestone. On rare exceptions an issue may be moved to Release if there's sufficient upvotes.
4. Once the issue matches the current milestone, follow development procedures.

[Prolonpo]

Ties well into #574, looks well balanced as well