added a shitty ecs that I'm confident is way worse than just looping … (#4)

* added a shitty ecs that I'm confident is way worse than just looping objects lol

* mader a rendering system based on ecs

core/shaders/triangle/frag.glsl

@@ -0,0 +1,16 @@
+#version 300 es
+
+precision highp float;
+
+in vec3 vNormal;
+out vec4 fragColor;
+
+void main() {
+    vec3 normal = normalize(vNormal);
+    vec3 lightDir = normalize(vec3(0.0, 0.0, 1.0));
+    float diff = max(dot(normal, lightDir), 0.0);
+
+    vec3 diffuseColor = vec3(1.0, 0.5, 0.3) * diff;
+
+    fragColor = vec4(diffuseColor, 1.0);
+}