feat(multiple): add Tree behavior

Author: wagnermaciel

src/aria/private/behaviors/tree/BUILD.bazel

@@ -0,0 +1,34 @@
+load("//tools:defaults.bzl", "ng_project", "ng_web_test_suite", "ts_project")
+
+package(default_visibility = ["//visibility:public"])
+
+ts_project(
+    name = "tree",
+    srcs = ["tree.ts"],
+    deps = [
+        "//:node_modules/@angular/core",
+        "//src/aria/private/behaviors/list",
+        "//src/aria/private/behaviors/list-focus",
+        "//src/aria/private/behaviors/list-navigation",
+        "//src/aria/private/behaviors/list-selection",
+        "//src/aria/private/behaviors/list-typeahead",
+        "//src/aria/private/behaviors/signal-like",
+    ],
+)
+
+ng_project(
+    name = "unit_test_sources",
+    testonly = True,
+    srcs = ["tree.spec.ts"],
+    deps = [
+        ":tree",
+        "//:node_modules/@angular/core",
+        "//src/aria/private/behaviors/list-focus",
+        "//src/aria/private/behaviors/signal-like",
+    ],
+)
+
+ng_web_test_suite(
+    name = "unit_tests",
+    deps = [":unit_test_sources"],
+)