Layer group uniforms

[alexcristici]

Implemented layer group uniforms, we had only drawable uniforms.
Moved evaluated props UBOs to layer level for all layers.

This will reduce the number of UBO binds on Metal and OpenGL and it will reduce also the bandwidth between CPU and GPU.
I did some measurements and the number of binds is reduced with approx. 10%.

[github-actions]

Bloaty Results (iOS) 🐋

Compared to main

    FILE SIZE        VM SIZE    
 --------------  -------------- 
  -0.0% -2.67Ki  [ = ]       0    TOTAL

Full report: https://maplibre-native.s3.eu-central-1.amazonaws.com/bloaty-results-ios/pr-2247-compared-to-main.txt

[github-actions]

Bloaty Results 🐋

Compared to main

    FILE SIZE        VM SIZE    
 --------------  -------------- 
  -0.0% -44.2Ki  -0.0% -9.42Ki    TOTAL

Full report: https://maplibre-native.s3.eu-central-1.amazonaws.com/bloaty-results/pr-2247-compared-to-main.txt

Compared to d387090 (legacy)

    FILE SIZE        VM SIZE    
 --------------  -------------- 
   +20% +23.3Mi  +406% +24.3Mi    TOTAL

Full report: https://maplibre-native.s3.eu-central-1.amazonaws.com/bloaty-results/pr-2247-compared-to-legacy.txt

[github-actions]

Benchmark Results ⚡

Benchmark                                                     Time             CPU      Time Old      Time New       CPU Old       CPU New
------------------------------------------------------------------------------------------------------------------------------------------
OVERALL_GEOMEAN                                            -0.0019         -0.0016             0             0             0             0

Full report: https://maplibre-native.s3.eu-central-1.amazonaws.com/benchmark-results/pr-2247-compared-to-main.txt

[mwilsnd]

Looks good to me, Stefan already caught the two things I saw.

[stefankarschti]

There is a reproducible crash after a style change and some pan / zoom.

[stefankarschti]

crash with metal validation error

-[MTLDebugRenderCommandEncoder validateCommonDrawErrors:]:5446: failed assertion `Draw Errors Validation
Fragment Function(fragmentMain): missing buffer binding at index 2 for tileprops[0].

[sjg-wdw]

Would love to see some performance numbers on this. Can we kick off a Device Farm run?