Add action for project mgmt

This action will automatically add new issues to our project board.

.github/workflows/add-issues-to-project.yml

@@ -0,0 +1,44 @@
+# From https://docs.github.com/en/enterprise-cloud@latest/issues/trying-out-the-new-projects-experience/automating-projects
+
+name: Automatically add new issue to planning board
+on:
+  issues:
+    types:
+      - opened
+jobs:
+  track_issue:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Get project data
+        env:
+          GITHUB_TOKEN: ${{ secrets.GH_PROJECT_TOKEN }}
+          ORGANIZATION: acorn-io
+          PROJECT_NUMBER: 1
+        run: |
+          gh api graphql -f query='
+            query($org: String!, $number: Int!) {
+              organization(login: $org){
+                projectNext(number: $number) {
+                  id
+                }
+              }
+            }' -f org=$ORGANIZATION -F number=$PROJECT_NUMBER > project_data.json
+
+          echo 'PROJECT_ID='$(jq '.data.organization.projectNext.id' project_data.json) >> $GITHUB_ENV
+      
+      - name: Add issue to project
+        env:
+          GITHUB_TOKEN: ${{ secrets.GH_PROJECT_TOKEN }}
+          ISSUE_ID: ${{ github.event.issue.node_id }}
+        run: |
+          item_id="$( gh api graphql -f query='
+            mutation($project:ID!, $issue:ID!) {
+              addProjectNextItem(input: {projectId: $project, contentId: $issue}) {
+                projectNextItem {
+                  id
+                }
+              }
+            }' -f project=$PROJECT_ID -f issue=$ISSUE_ID --jq '.data.addProjectNextItem.projectNextItem.id')"
+          
+          echo 'ITEM_ID='$item_id >> $GITHUB_ENV
+