updated graph rendering to be more efficient. added smooth scrolling, added color type, mmb drag for cutting

scripts/nodes/library/converters/index.js

@@ -0,0 +1,7 @@
+import { colorToNumberNode } from "./colorToNumber.js";
+import { numberToColorNode } from "./numberToColor.js";
+
+/**
+ * All type conversion nodes.
+ */
+export const converterNodes = [colorToNumberNode, numberToColorNode];