fix missing sounds in allies01

closes #3478
fix silent cruiser cannons in shellmaps

closes #3598
added sound extensions and replaced missing volknapalm.aud
Changes track title of Afterlife to Await

The file is called await_r.aud and the ingame title in RA was Await, too. As far as I can tell, the title 'Afterlife' first came up in the old RAMIXer's database, and was copy-pasted to XCC Mixer's database. But there is no indication that Afterlife really is/was supposed to be the real in-game title of this track.
Merge pull request #3604 from reaperrr/patch-2

Changes track title of Afterlife to Await
Merge pull request #3601 from Mailaender/sound-extensions

Sound extensions for Red Alert missions
Fixes cnc mod mouse cursor.

Looks like color #12 got replaced with color #0 during conversion from dune2 shp to cnc shp. I fixed mouse2.shp by converting the original shp with a custom palette and then manually fixed mouse4.shp.
fix useless RenderUnit trait addition and removal
fix broken tabs before newline and remove unnecessary spaces
set up Tiberian Sun and Firestorm soundtrack
Added a (temporary) C&C chrome skin for Tiberian Sun
Added a minimal work in progress TS mod with few backfalls on RA

to showcase infantry, vehicles, aircraft
Merge pull request #3606 from reaperrr/cnc-mouse-fix

Fixes cnc mod mouse cursor
Merge pull request #3603 from Mailaender/tiberian-sun

Added a Tiberian Sun test mod
Merge pull request #3607 from pchote/widget-focus

Split keyboard/mouse focus and use C&C world tooltips in RA/D2K.
Add WAngle.ArcTan().
Add probabilistic sampling functions to WRange, WVec.
Convert ProjectileArgs to world coords.
Split TeslaRenderable out from TeslaZap.
Rewrite GravityBomb with world coords and gravity.