feat(assets): add cube vertex and fragment shaders

assets/shaders/cube.frag

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+#version 450
+
+layout(location = 0) in vec2 in_tex_coord;
+
+layout(location = 0) out vec4 out_color;
+
+void main () {
+    out_color = vec4(in_tex_coord, 1.0, 1.0);
+}

assets/shaders/cube.frag.spv

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3874fa1c7782cba103fa7df1505c900506ab27a19a00f6e15c073c6a96b0f34c
+size 556

assets/shaders/cube.vert

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+
+#version 450
+
+layout(location = 0) in vec3 in_position;
+layout(location = 1) in vec2 in_tex_coord;
+
+layout(location = 0) out vec2 out_tex_coord;
+
+layout(push_constant) uniform PushConstants {
+    mat4 mvp;
+} push_constants;
+
+void main() {
+    gl_Position = push_constants.mvp * vec4(in_position, 1.0);
+    
+    out_tex_coord = in_tex_coord;
+}

assets/shaders/cube.vert.spv

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:dcac088d9ed53209a22008ab3ad49d88dbb8e8f6b4b2a17fef5a8368856019ea
+size 1360