Add workflow to automatically add new issues to OSS Project (#36)

Adds a new workflow that automatically pushes newly-opened issues to the InnerEye-OSS GitHub Project

.github/workflows/issues_to_project.yml

@@ -0,0 +1,46 @@
+name: Add new issues to InnerEye-OSS project
+on:
+  issues:
+    types:
+      - opened
+jobs:
+  track_issue:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Get project data
+        env:
+          GITHUB_TOKEN: ${{ secrets.INNEREYE_OSS_PROJECT_ACCESS_TOKEN }}
+          ORGANIZATION: Microsoft
+          PROJECT_NUMBER: 320
+        run: |
+          gh api graphql -f query='
+            query($org: String!, $number: Int!) {
+              organization(login: $org){
+                projectNext(number: $number) {
+                  id
+                  fields(first:20) {
+                    nodes {
+                      id
+                      name
+                      settings
+                    }
+                  }
+                }
+              }
+            }' -f org=$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.INNEREYE_OSS_PROJECT_ACCESS_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')"