[MOM] Add teleportation ephemeral walk power

[b3brodie]

Summary

Mods "Add Teleportation Ephemeral Walk Power"

Purpose of change

Teleporters could use some more powers
Adds a new concentration power for teleporters that acts similarly to the probability travel CBM.

Describe the solution

Add PHASE_DISTANCE enchant:
Create a new movement function similar to the quantum tunneling instead of expanding the existing one to better support the alternate features.

• No power usage.
• No logic based on CBM presence.
• No messages directly related to how the CBM works (Or at all. I believe they would get a bit spammy).
• Distance travel is based on inputted distance variable currently directly obtained by the enchantment value. Defaults to 0.
• Big: allows vertical phasing.
  Vertical Phasing Notes:
• Hooked up the new function to a couple of areas in the vertical move method as a trigger but leaves the movement in the new function. This is because the vertical_move seems set up to only move 1 level at a time while phasing may involve moving multiple levels at once. With my testing vertical movement functions largely as expected but using other methods of descension / ascension (such as climbing down a wall next to the player) has priority over vertical phasing.

MOM Power:
Adds a difficulty 6 concentration power that hooks up to the new enchant. Uses a similar distance scaling as the phase power. Should include all the normal things involved with adding a new concentration power.

Describe alternatives you've considered

N/A

Testing

Enchant:
Tested that movement without any level of phasing enchant is not effected at all
Tested that phasing allows moving through obstacles
Tested that phasing distance is capped by given value
Tested that phasing vertically works
Tested that moving onto / off of vehicles works

MOM:
Tested that power is learnable
Tested that concentration power toggles as expected
Tested that power correctly gives enchant and allows phasing

Additional context

Vertical phasing was a rabbit hole.

[Standing-Storm]

Thank you so much for this enchant! I can already think of other uses for it (letting Clairsentients who are astrally projecting just walk through walls instead of needing to use a fake spell to do it, letting XE's Ierde walk through walls while underground, etc).