Triangle posting

https://vulkan-tutorial.com/Vertex_buffers/Staging_buffer

Reached the above part of the tutorial. Adding IMGUI now before
continuing.

Shaders/compile.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+glslc ./shader.vert -o vert.spv
+glslc ./shader.frag -o frag.spv