Chore: dedupe and sort other rulesets

Build/lib/bitwise.ts

@@ -0,0 +1,9 @@
+/** Packs two 16-bit integers into one 32-bit integer */
+export const pack = (a: number, b: number): number => {
+  return (a << 16) | b;
+};
+
+/** Unpacks two 16-bit integers from one 32-bit integer */
+export const unpack = (value: number): [a: number, b: number] => {
+  return [(value >> 16) & 0xFFFF, value & 0xFFFF];
+};