Resolve "Mesh Shader Implementation"

Closes #87 (closed)

modules/meshlet/include/vkcv/meshlet/Forsyth.hpp

+#pragma once
+
+#include "Meshlet.hpp"
+
+namespace vkcv::meshlet
+{
+ /**
+  * Reorders the index buffer, simulating a LRU cache, so that vertices are grouped together in close triangle patches
+  * @param idxBuf current IndexBuffer
+  * @param vertexCount of the mesh
+  * @return new reordered index buffer to replace the input index buffer
+  * References:
+  * https://tomforsyth1000.github.io/papers/fast_vert_cache_opt.html
+  * https://www.martin.st/thesis/efficient_triangle_reordering.pdf
+  * https://github.com/vivkin/forsyth/blob/master/forsyth.h
+  */
+ VertexCacheReorderResult forsythReorder(const std::vector<uint32_t> &idxBuf, const size_t vertexCount);
+}