Add defines, basic shaders

defines.h

@@ -0,0 +1,12 @@
+ #pragma once
+
+struct Vertex {
+    float x;
+    float y;
+    float z;
+    
+    float r;
+    float g;
+    float b;
+    float a;
+};

res/shaders/basic.fs

@@ -0,0 +1,9 @@
+#version 330 core
+
+layout(location = 0) out vec4 f_color;
+
+in vec4 v_color;
+
+void main() {
+    f_color = v_color;
+}

res/shaders/basic.vs

@@ -0,0 +1,11 @@
+#version 330 core
+
+layout(location = 0) in vec3 a_position;
+layout(location = 1) in vec4 a_color;
+
+out vec4 v_color;
+
+void main() {
+    gl_Position = vec4(a_position, 1.0f);
+    v_color = a_color;
+}