build: import in-memory-web-api project (#37182)

Moves the `angular-in-memory-web-api` project into the main repository in order to make it easier to maintain and release.

PR Close #37182

packages/misc/angular-in-memory-web-api/BUILD.bazel

@@ -0,0 +1,29 @@
+load("//tools:defaults.bzl", "ng_module", "ng_package")
+
+package(default_visibility = ["//visibility:public"])
+
+ng_module(
+    name = "angular-in-memory-web-api",
+    srcs = glob(
+        [
+            "*.ts",
+            "src/**/*.ts",
+        ],
+    ),
+    module_name = "angular-in-memory-web-api",
+    deps = [
+        "//packages/common",
+        "//packages/common/http",
+        "//packages/core",
+        "@npm//rxjs",
+    ],
+)
+
+ng_package(
+    name = "npm_package",
+    srcs = ["package.json"],
+    entry_point = ":index.ts",
+    deps = [
+        ":angular-in-memory-web-api",
+    ],
+)