Resolve "Mesh Shader Implementation"

Closes #87 (closed)

projects/mesh_shader/resources/shaders/shader.frag

 #version 450
 #extension GL_ARB_separate_shader_objects : enable
 
-//layout(location = 0) in vec3 fragColor;
+layout(location = 0) in vec3 VertexColor;
 layout(location = 0) out vec4 outColor;
 
 void main() {
-	outColor = vec4(1.0);
+	outColor = vec4(VertexColor, 1);
 }
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