Added hair, facial hair, magic mirror (#452)

* Added hair, facial hair, magic mirror

* I forgot to commit the textures lmao

* Use shader to fix hair color blending

Resources/Shaders/hair.swsl

@@ -0,0 +1,8 @@
+// Additively blends the hair color onto the hair sprite.
+
+uniform vec4 hairColor;
+
+void fragment() {
+    COLOR = texture(TEXTURE, UV);
+    COLOR.rgb += hairColor.rgb;
+}