[PageControl] Add BUILD file (#2652)

components/PageControl/BUILD

@@ -0,0 +1,88 @@
+# Copyright 2017-present The Material Components for iOS Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+load("//:material_components_ios.bzl",
+     "mdc_public_objc_library",
+     "mdc_objc_library")
+load("@build_bazel_rules_apple//apple:ios.bzl", "ios_unit_test")
+
+licenses(["notice"])  # Apache 2.0
+
+mdc_public_objc_library(
+    name = "PageControl",
+    bundles = [":Bundle"],
+    sdk_frameworks = [
+        "QuartzCore",
+        "CoreGraphics",
+        "UIKit",
+    ],
+)
+
+filegroup(
+    name = "BundleFiles",
+    srcs = glob([
+        "src/MaterialPageControl.bundle/**",
+    ]),
+)
+
+objc_bundle(
+    name = "Bundle",
+    bundle_imports = [":BundleFiles"],
+)
+
+mdc_objc_library(
+    name = "ColorThemer",
+    srcs = native.glob(["src/ColorThemer/*.m"]),
+    hdrs = native.glob(["src/ColorThemer/*.h"]),
+    includes = ["src/ColorThemer"],
+    deps = [
+        ":PageControl",
+        "//components/Themes",
+    ],
+    visibility = ["//visibility:public"],
+)
+
+mdc_objc_library(
+    name = "private",
+    hdrs = native.glob(["src/private/*.h"]),
+    includes = ["src/private"],
+    visibility = ["//visibility:private"],
+)
+
+mdc_objc_library(
+    name = "unit_test_sources",
+    testonly = 1,
+    srcs = native.glob([
+        "tests/unit/*.m",
+        "tests/unit/*.h",
+    ]),
+    sdk_frameworks = [
+        "XCTest",
+    ],
+    deps = [
+        ":PageControl",
+        ":ColorThemer",
+    ],
+    visibility = ["//visibility:private"],
+)
+
+ios_unit_test(
+    name = "unit_tests",
+    deps = [
+      ":unit_test_sources",
+    ],
+    minimum_os_version = "8.0",
+    visibility = ["//visibility:private"],
+)