Simplify and polish D2k effects/palettes.

[pchote]

This PR does some initial housekeeping around D2k palettes in preparation for using the R16 sprites (aka D2kHDR 🌈).

I compared most of our effects against the "Dune 2000 Map and Mission Editor" tool which caught some discrepencies that I have now also fixed.

The cloak palette will be handled in its own PR.

The fog now looks slightly different, i'm hoping this won't be too controversial.

[penev92]

Code changes look fine, but this needs to be scrutinized in game. 🧐

[Porenutak]

New Fog of War change whole color tone instead of just make scene darker or foggy. Its awkward and not very eye pleasing.

Rest is OK.

[PunkPun]

I agree. The new fog feels like it has a high contrast filter applied. The east and north facing cliffs look quite ugly

[PunkPun]

[pchote]

Updated to restore the previous fog visuals, and added a new commit to use the correct trike icon (4305 is a duplicate of 4277 in DATA.R8, but garbage in DATA.R16).

[Porenutak]

LGTM

[PunkPun]

LGTM

[PunkPun]

Actually shouldn't there be an update rule for the trait removal?

[pchote]

They are d2k-specific traits in the Mods.D2k.dll, so IMO no (and this would cause problems with visibility since UpgradePath can't see into Mods.D2k.dll).

[PunkPun]

But in update we only deal in strings. We don't use actual classes that could have dependency issues unless it's basic structs such as CPos.

And we do write update rules for Mods.Cnc.dll

[pchote]

Added update rules.

[PunkPun]

needs a rebase

[pchote]

Rebased.

[PunkPun]

LGTM

[PunkPun]

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