feat(cdk-experimental/accordion): add accordion directives, example, and tests

.ng-dev/commit-message.mts

@@ -9,6 +9,7 @@ export const commitMessage: CommitMessageConfig = {
   minBodyLengthTypeExcludes: ['docs'],
   scopes: [
     'multiple', // For when a commit applies to multiple components.
+    'cdk-experimental/accordion',
     'cdk-experimental/column-resize',
     'cdk-experimental/combobox',
     'cdk-experimental/listbox',

src/cdk-experimental/accordion/BUILD.bazel

@@ -0,0 +1,37 @@
+load("//tools:defaults.bzl", "ng_project", "ng_web_test_suite", "ts_project")
+
+package(default_visibility = ["//visibility:public"])
+
+ng_project(
+    name = "accordion",
+    srcs = [
+        "accordion.ts",
+        "index.ts",
+        "public-api.ts",
+    ],
+    deps = [
+        "//src/cdk-experimental/deferred-content",
+        "//src/cdk-experimental/ui-patterns",
+        "//src/cdk/a11y",
+        "//src/cdk/bidi",
+    ],
+)
+
+ts_project(
+    name = "unit_test_sources",
+    testonly = True,
+    srcs = [
+        "accordion.spec.ts",
+    ],
+    deps = [
+        ":accordion",
+        "//:node_modules/@angular/core",
+        "//:node_modules/@angular/platform-browser",
+        "//src/cdk/testing/private",
+    ],
+)
+
+ng_web_test_suite(
+    name = "unit_tests",
+    deps = [":unit_test_sources"],
+)