Update to bevy 0.13 (#87)

Co-authored-by: Lee-Orr <lee-orr@users.noreply.github.com>
Co-authored-by: Danny McGee <dannymcgee@gmail.com>

studio/assets/shaders/gizmo.wgsl

@@ -1,6 +1,6 @@
 #import bevy_pbr::forward_io::VertexOutput
 
-@group(1) @binding(0)
+@group(2) @binding(0)
 var<uniform> material_color: vec4<f32>;
 
 @fragment

studio/assets/shaders/procedural_grid.wgsl.meta

@@ -1,7 +0,0 @@
-(
-    meta_format_version: "1.0",
-    asset: Load(
-        loader: "bevy_render::render_resource::shader::ShaderLoader",
-        settings: (),
-    ),
-)