move guid code to new library

libs/guid/src/index.ts

@@ -0,0 +1,13 @@
+export const guidRegex = /^[0-9a-f]{8}-(?:[0-9a-f]{4}-){3}[0-9a-f]{12}$/i;
+
+export function newGuid(): string {
+  return "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g, (c) => {
+    const r = (Math.random() * 16) | 0;
+    const v = c === "x" ? r : (r & 0x3) | 0x8;
+    return v.toString(16);
+  });
+}
+
+export function isGuid(id: string): boolean {
+  return guidRegex.test(id);
+}