[LUA] Add Frozen Mist and Hydro Wave mobskills

[ampitere]

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• I understand that if I do not agree to the following points by completing the checkboxes my PR will be ignored.
• I understand I should leave resolving conversations to the LandSandBoat team so that reviewers won't miss what was said.
• I have read and understood the Contributing Guide and the Code of Conduct.
• 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?

Adds Frozen Mist and Hydro Wave mobskills. Requires implementing some unique types of Stoneskin, one which absorbs only physical and the other which only absorbs magic, breath, and non-elemental damage (to be done in #5734) Resolves #201

Steps to test these changes

https://www.bg-wiki.com/ffxi/Category:Ruszor

1. !zone Beaucedine Glacier [S]
2. !mobhere 17334289

Frozen Mist - https://wiki.ffo.jp/html/21510.html

1. !exec target:useMobAbility(2438)
2. !getmod ICE_ABSORB
3. Effect should absorb 1000 physical damage, while active mob will absorb Ice damage (JP wiki says 1000, bg-wiki says 1500) - will be implemented in [Core] Add Stoneskin subpower interactions for Ruszor mobskills #5734

Hydro Wave - https://wiki.ffo.jp/html/24705.html

1. !exec target:useMobAbility(2439)
2. !getmod WATER_ABSORB
3. Effect should absorb 1500 magic, breath, and non-elemental damage, while active mob will absorb Water damage - will be implemented in [Core] Add Stoneskin subpower interactions for Ruszor mobskills #5734

[UmeboshiXI]

The special effects for the Ruszor mobskills are a result of changing the mob's AnimationSub.

AnimationSub:
0 = "Normal"
1 = "Bubbly Effect"
2 = "Frosty/Ice Effect"

[ampitere]

Will need to change these to target self once #5745 is merged.