chore: update github issue templates (#1085)

synthtool/gcp/templates/node_library/.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,7 +1,7 @@
 ---
 name: Bug report
 about: Create a report to help us improve
-
+labels: 'type: bug, priority: p2'
 ---
 
 Thanks for stopping by to let us know something could be better!

synthtool/gcp/templates/node_library/.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,4 @@
+contact_links:
+  - name: Google Cloud Support
+    url: https://cloud.google.com/support/
+    about: If you have a support contract with Google, please use the Google Cloud Support portal.

synthtool/gcp/templates/node_library/.github/ISSUE_TEMPLATE/feature_request.md

@@ -1,7 +1,7 @@
 ---
 name: Feature request
 about: Suggest an idea for this library
-
+labels: 'type: feature request, priority: p3'
 ---
 
 Thanks for stopping by to let us know something could be better!

synthtool/gcp/templates/node_library/.github/ISSUE_TEMPLATE/question.md

@@ -0,0 +1,12 @@
+---
+name: Question
+about: Ask a question
+labels: 'type: question, priority: p3'
+---
+
+Thanks for stopping by to ask us a question! Please make sure to include:
+- What you're trying to do
+- What code you've already tried
+- Any error messages you're getting
+
+**PLEASE READ**: If you have a support contract with Google, please create an issue in the [support console](https://cloud.google.com/support/) instead of filing on GitHub. This will ensure a timely response.