add simple render, add simple pbr shader(from hazel)

Sandbox/assets/shaders/shader.glsl

@@ -1,21 +1,32 @@
 #type vertex
-#version 430 core
+#version 430
 
 layout(location = 0) in vec3 a_Position;
+layout(location = 1) in vec3 a_Normal;
+layout(location = 2) in vec3 a_Tangent;
+layout(location = 3) in vec3 a_Bitangent;
+layout(location = 4) in vec2 a_TexCoord;
+
+uniform mat4 u_MVP;
+
+out vec3 v_Normal;
 
 void main()
 {
-	gl_Position = vec4(a_Position, 1.0);
+	gl_Position = u_MVP * vec4(a_Position, 1.0);
+	v_Normal = a_Normal;
 }
 
 #type fragment
-#version 430 core
+#version 430
 
-layout(location = 0) out vec4 o_Color;
+layout(location = 0) out vec4 finalColor;
 
-uniform vec4 u_Color;
+//uniform vec4 u_Color;
+
+in vec3 v_Normal;
 
 void main()
 {
-	o_Color = u_Color;
-}
+	finalColor = vec4((v_Normal * 0.5 + 0.5), 1.0);// * u_Color.xyz, 1.0);
+}