Add file structure to code

- Rename project to CopiumEngine

CopiumEngine/res/shaders/shader.frag

@@ -0,0 +1,15 @@
+#version 450
+
+layout(set = 0, binding = 1) uniform sampler2D texSampler;
+
+layout(location = 0) in vec3 fragColor;
+layout(location = 1) in vec2 fragTexCoord;
+layout(location = 2) in vec3 fragPosition;
+layout(location = 3) in vec3 fragLightPos;
+
+layout(location = 0) out vec4 outColor;
+
+void main() {
+  float scale = 0.45 +  max(dot(vec3(0, 1, 0), normalize(fragLightPos - fragPosition)), 0.0);
+  outColor = vec4(fragColor, 1.0) * texture(texSampler, fragTexCoord) * scale;
+}