Add all BENNC message types with unit tests

src/utilities/number.ts

@@ -0,0 +1,21 @@
+/**
+ * Pack a number to a 2 byte Uint16 buffer (big endian).
+ * @param number The number to pack.
+ * @returns The packed buffer.
+ */
+export function numberToUint16BE (number: number): Buffer {
+  const ret = Buffer.alloc(2)
+  ret.writeUInt16BE(number)
+  return ret
+}
+
+/**
+ * Pack a number to a 4 byte Uint32 buffer (big endian).
+ * @param number The number to pack.
+ * @returns The packed buffer.
+ */
+export function numberToUint32BE (number: number): Buffer {
+  const ret = Buffer.alloc(4)
+  ret.writeUInt32BE(number)
+  return ret
+}