Use actions/labeler to automatically label pull requests (#1004)

.github/labeler.yml

@@ -0,0 +1,26 @@
+# Copyright 2022 Google LLC
+#
+# 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.
+
+'on:blueprints':
+  - blueprints/**/*
+'on:documentation':
+  - '**/*.md'
+  - assets/**/*
+  - tests/**/*
+'on:FAST':
+  - fast/**/*
+'on:modules':
+  - modules/**/*
+'on:tools':
+  - tools/**/*