Refactor UniformBuffers and DescriptorSets

- Refactor UniformBuffers to keep track of the uniforms it contains
- Refactor DescriptorSets to initialize UniformsBuffers and keep track
  of all its bindings
- DescriptorSets can now be created from the Pipeline
- Add custom DescriptorSets to Renderer

CopiumEngine/src/copium/renderer/Batch.cpp

@@ -0,0 +1,25 @@
+#include "copium/renderer/Batch.h"
+
+#include "copium/renderer/RendererVertex.h"
+
+namespace Copium
+{
+  Batch::Batch(Vulkan& vulkan, Pipeline& pipeline, DescriptorPool& descriptorPool, int vertexCount, const std::vector<const Sampler*> samplers)
+    : vulkan{vulkan},
+      pipeline{pipeline},
+      vertexBuffer{vulkan, RendererVertex::GetDescriptor(), vertexCount},
+      descriptorSet{pipeline.CreateDescriptorSet(descriptorPool, 0)}
+  {
+    descriptorSet->SetSamplers(samplers, 0);
+  }
+
+  RendererVertexBuffer& Batch::GetVertexBuffer()
+  {
+    return vertexBuffer;
+  }
+
+  DescriptorSet& Batch::GetDescriptorSet()
+  {
+    return *descriptorSet;
+  }
+}