Add main shaders

shaders/frag.glsl

@@ -0,0 +1,9 @@
+#version 330 core
+
+in vec3 vert_color;
+
+out vec4 color;
+
+void main() {
+  color = vec4(vert_color, 1.0f);
+};

shaders/vert.glsl

@@ -0,0 +1,11 @@
+#version 330 core
+
+layout(location=0) in vec3 position;
+layout(location=1) in vec3 color;
+
+out vec3 vert_color;
+
+void main() {
+  vert_color = color;
+  gl_Position = vec4(position, 1.0);
+};