Initial EventLogTags for CarService.

This CL defines a new project (car-internal-lib) that will contain
internal libraries (such as utilities used by CarService and
CarServiceHelperService).

It also creates a class (com.android.internal.car.EventLogTags)
for car-related event logs, and add the initial logs (for
CarService / ICarImpl and user-related components).

Bug: 149797595
Bug: 153900032

Test: adb logcat -b events -v color | egrep 'car_'

Change-Id: I987ebafdadc39de768d0f053d4c6ea18fd95b169
diff --git a/car-internal-lib/Android.bp b/car-internal-lib/Android.bp
new file mode 100644
index 0000000..cb68c66
--- /dev/null
+++ b/car-internal-lib/Android.bp
@@ -0,0 +1,26 @@
+// Copyright (C) 2020 The Android Open Source Project
+//
+// 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.
+
+// This project contains libraries that are used internally, mostly by
+// CarService and CarServiceHelperService.
+//
+// They're not meant to be used by other system apps and hence are not
+// supported.
+
+java_library {
+    name: "android.car.internal.event-log-tags",
+    srcs: [
+        "src/com/android/internal/car/EventLogTags.logtags",
+    ],
+}