Drawing a textured quad

Added new assets
Loaded all texture assets into game state
Loaded the basic pipeline
Setup a hard-coded quad to test drawing
Created a very jank vertex struct
Added ReadEntireFile for filesystem
Added getting file size from file handle
Added a descriptor pool to each in flight frame
Changed Vk_BufferCreate to handle multiple uses
Added shader building to the windows.bat build script

code/vulkan/shaders/basic.vert

@@ -0,0 +1,28 @@
+#version 460 core
+
+#extension GL_EXT_scalar_block_layout : enable
+
+struct Vertex {
+	vec4 p;
+	vec2 uv;
+	uint c;
+	uint pad;
+};
+
+layout(binding = 0, scalar)
+readonly buffer Vertices {
+	Vertex vtx[];
+};
+
+layout(location = 0) out vec2 frag_uv;
+layout(location = 1) out vec4 frag_c;
+
+void main() {
+	Vertex v = vtx[gl_VertexIndex];
+
+	gl_Position = v.p;
+
+	frag_uv = v.uv;
+	frag_c  = vec4((v.c >> 24) & 0xFF, (v.c >> 16) & 0xFF, (v.c >> 8) & 0xFF, (v.c >> 0) & 0xFF) / 255.0f;
+	frag_c  = frag_c.abgr;
+}