Replace MVP uniform buffer with push constants

UBO should be used for large data. MVP should be
push constants, since it's a small amount of data
updated every frame

Signed-off-by: Piotr Krygier <piotrkrygier@everyonecancode@xyz>

graphics/shaders/shader.vert

@@ -1,6 +1,6 @@
 #version 450
 
-layout(binding = 0) uniform UniformBufferObject {
+layout(push_constant) uniform pc {
     mat4 model;
     mat4 view;
     mat4 proj;
@@ -16,7 +16,7 @@ struct InstanceData
     uint texture_id;
 };
 
-layout(binding = 1) uniform InstanceUniformBuffer {
+layout(binding = 0) uniform InstanceUniformBuffer {
     InstanceData instances[MAX_INSTANCES];
 };