Support for integer/data textures in WebGL2 and WebGPU (#5921)

* Support for integer/data textures in WebGL2 and WebGPU

* Add newline to fix lint

* Fix RG16I string label

* Add optional check

* Change comment to Not supported on WebGL1

Co-authored-by: Martin Valigursky <59932779+mvaligursky@users.noreply.github.com>

* Clean up uniform buffer storage selection and padding

* Clean up spaces

* Update WebGL1 not supported comment

* Use boolean flag to indicate integer pixel format

* Reorder constants and fix webgpu typo

* Keep original textureDimensions order in shader-processor

* Revert uniform-buffer with minimal additions

* Do not allow changing integer texture mipmap/filter properties, log warning

* Revert formatting changes to compressed formats

* Revert previous comment change

* Keep original order of pcUniformType in webgl-graphics-device

* Keep original order in webgl-graphics-device

* Minimize import diff

* Minimize import diff

* Sand simulation example

* Clean up example a bit

* Clean up some lines

* Use single int texture instead of uvec2

* Add additional keyboard shortcuts

* Reuse vertex shader, add comment

* Add comments to resetData

* Remove undefined throws

* Use example description, remove screen and assets, add comments

* Revert description width change

* Add a WebGL1 warning in controls panel

* Accept options object when creating shaders, allow changing outputType for every attachment

* Remove console log

* Update src/platform/graphics/shader-utils.js

* Additional PR comments

* Update src/scene/graphics/render-pass-shader-quad.js

* Update src/scene/graphics/render-pass-shader-quad.js

* Add note explaining use of 'comparison' for integer textures

* Update src/platform/graphics/webgpu/webgpu-bind-group-format.js

Co-authored-by: Will Eastcott <will@playcanvas.com>

* Update src/platform/graphics/shader-utils.js

Co-authored-by: Will Eastcott <will@playcanvas.com>

* Apply suggestions from code review

Co-authored-by: Will Eastcott <will@playcanvas.com>

* Update src/scene/graphics/render-pass-shader-quad.js

Co-authored-by: Will Eastcott <will@playcanvas.com>

* For unsigned pixel formats, use U instead of UI

* Change string names of pixelFormatInfo

---------

Co-authored-by: Martin Valigursky <59932779+mvaligursky@users.noreply.github.com>
Co-authored-by: Will Eastcott <will@playcanvas.com>

examples/src/examples/graphics/index.mjs

@@ -14,6 +14,7 @@ export * from "./grab-pass.mjs";
 export * from "./ground-fog.mjs";
 export * from "./hardware-instancing.mjs";
 export * from "./hierarchy.mjs";
+export * from "./integer-textures.mjs";
 export * from "./layers.mjs";
 export * from "./lights-baked-a-o.mjs";
 export * from "./lights-baked.mjs";