Setup spawn and basic fight mechanics for Pallas in Vunkerl Inlet

[CatsEyeXI]

I affirm:

• [x] I understand that if I do not agree to the following points by completing the checkboxes my PR will be ignored.
• [x] I understand I should leave resolving conversations to the LandSandBoat team so that reviewers won't miss what was said.
• [x] I have read and understood the Contributing Guide and the Code of Conduct.
• [x] I have tested my code and the things my code has changed since the last commit in the PR and will test after any later commits.

What does this pull request do?

Defines placeholders and spawn conditions for Pallas (S). Pallas will spawn his 3 pets shortly after spawning. He will periodically recall them during battle. When he uses Familiar this will wake all of his pets and grant them a sleep resistance buff. Logic and resistance data built off of the following sources: Silknawz: https://www.youtube.com/watch?v=UyW5XffUXJQ Clopedia: https://ffxiclopedia.fandom.com/wiki/Pallas

TODO:

• Attack power will need to be properly measured by a naked level 99 to acquire a proper baseline. Clopedia states "Power Attack can deal at least 1100 points of damage." but this was not verifiable.
• I do not believe that table mob_pets is setup for multiple pets. Only one entry was added. This was sufficient to allow Pallas to use Familiar regardless of whether or not the specified pet was alive.

Steps to test these changes

!spawnmob 17117250 !gotoid 17117250

[CatsEyeXI]

Seems like this might be a little too hacked together for merge? I'm ok with it getting closed out if we're at an impasse. Thanks 🙏