turn on gradle configuration cache

gradle.properties

@@ -1,3 +1,19 @@
+#
+#   Copyright 2019 Jeffrey Liu ([email protected])
+#
+#   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.
+#
+
 # Project-wide Gradle settings.
 # IDE (e.g. Android Studio) users:
 # Gradle settings configured through the IDE *will override*
@@ -40,4 +56,6 @@ android.lifecycleProcessor.incremental=true
 # caches all the unchanged modules
 org.gradle.caching=true
 android.nonTransitiveRClass=true
-android.nonFinalResIds=true
+android.nonFinalResIds=true
+
+org.gradle.configuration-cache=true