add id to bootloader request actions

This will be used to match didRequest to a requst to avoid issues with messages being queued concurrently

src/utils/iter.test.ts

@@ -0,0 +1,26 @@
+import { count, createCountFunc } from './iter';
+
+test('count', () => {
+    let expected = 0;
+    for (const i of count()) {
+        expect(i).toBe(expected);
+        expected++;
+        if (expected > 10) {
+            break;
+        }
+    }
+});
+
+test('createCountFunc', () => {
+    const func = createCountFunc();
+    expect(func()).toBe(0);
+    expect(func()).toBe(1);
+    expect(func()).toBe(2);
+    expect(func()).toBe(3);
+    expect(func()).toBe(4);
+    expect(func()).toBe(5);
+    expect(func()).toBe(6);
+    expect(func()).toBe(7);
+    expect(func()).toBe(8);
+    expect(func()).toBe(9);
+});

src/utils/iter.ts

@@ -0,0 +1,19 @@
+/**
+ * Creates an iterator that counts infinitely (to Number.MAX_SAFE_INTEGER really)
+ * starting from 0.
+ */
+export function* count(): Generator<number, number, void> {
+    let n = 0;
+    while (true) {
+        yield n++;
+    }
+}
+
+/**
+ * Creates a new function that counts infinitely (to Number.MAX_SAFE_INTEGER really)
+ * starting from 0.
+ */
+export function createCountFunc(): () => number {
+    const gen = count();
+    return (): number => gen.next().value;
+}