[rendergraph] Refactoring, part 1 of 2

[IAmNotHanni]

Changes

Closes https://github.com/inexorgame/vulkan-renderer/issues/277

• [x] Implement uses_shaders
• [x] Implement push_constant_range template method
• [x] Refactor handling of vertex input attribute descriptions
• [x] Set texture format directly in constructor of TextureResource and remove set_format method
• [x] Make calls to render stage setup chainable
• [x] Add wrapper for VkPipelineLayout
• [x] Add wrapper for graphics pipelines
• [x] Add graphics pipeline builder
• [x] Add wrapper for VkRenderPass (This will go away once we have dynamic rendering)
• Add renderpass builder (Renderpasses will be removed anyways once we support dynamic rendering: https://github.com/inexorgame/vulkan-renderer/issues/438)
• [x] Add wrapper for VkSampler
• [x] Refactor Image RAII wrapper class and use it in rendergraph
• [x] Remove unused MeshBuffer class
• [x] Remove unused msaa_target.hpp file

Outlook: Refactoring, part 2

• https://github.com/inexorgame/vulkan-renderer/issues/526
• https://github.com/inexorgame/vulkan-renderer/issues/430
• https://github.com/inexorgame/vulkan-renderer/pull/418
• https://github.com/inexorgame/vulkan-renderer/issues/288
• Give each octree its own vertex buffer, index buffer and uniform buffer (This is important for https://github.com/inexorgame/vulkan-renderer/pull/423)
• https://github.com/inexorgame/vulkan-renderer/issues/204
• https://github.com/inexorgame/vulkan-renderer/issues/285
• https://github.com/inexorgame/vulkan-renderer/issues/203

[IAmNotHanni]

I am working on a new rendergraph implementation currently, so I converted it back to a draft. We might not need all of this.

[IAmNotHanni]

I will close this because it will come back as rendergraph2 soon. It makes no sense to refactor here if I will rewrite it from scratch again anyways.