Made navmesh compile on Windows

Small updates to remove warnings
Testing nonuniform descriptor access in shader

code/vulkan/shaders/basic.frag

@@ -1,12 +1,15 @@
 #version 460 core
 
+#extension GL_EXT_nonuniform_qualifier : enable
+
 layout(location = 0) in vec2 frag_uv;
 layout(location = 1) in vec4 frag_c;
+layout(location = 2) in flat uint idx;
 
 layout(location = 0) out vec4 framebuffer;
 
-layout(binding = 1) uniform sampler2D u_image;
+layout(binding = 1) uniform sampler2D u_image[];
 
 void main() {
-	framebuffer = frag_c * texture(u_image, frag_uv);
+	framebuffer = frag_c * texture(u_image[idx], frag_uv);
 }