Switch occlusion culling to be based on depth instead of Euclidean distance

[Rudolph-B]

Resolves #94210 while undoing #98257 to improve behavior of #99986

Main reasons this change in approach as stated by @Flarkk in #97712 are:

1. the edge case discussed above is in my opinion not worth the overhead introduced by moving the whole buffer to euclidiant distance (see Store view depth instead of ray length in occlusion buffer #100907)

2. it ensures occlusion culling still works with very far away objects (see Enable rendering with unbounded far distance #99986 (comment))

Tested using:

• MRP-A.zip (From Occlusion Culling falsely culls large objects visible through small openings when touching the edge of the viewport #94210)
• MRP-B.zip (To ensure orthogonal cameras still work)

This is a re-implementation of #97712 since I was unable to reopen it.

[Rudolph-B]

@Flarkk If you are happy with this I can change the PR to ready for review?

[Flarkk]

Awesome ! Will test it against #99986 and let you know.