Add applicable project labels and ensure PRs have one of Task,Bug (#72)

Author: DavidSouther

.github/allowed-labels.yaml

@@ -1,7 +1,7 @@
 # Labels for tracking statistics and history
-- name: Task
+- name: Enhancement
   color: f5f7f9
-  description: "A general update to the code base for language clarification, missing actions, tests, etc."
+  description: "A general update to the code base."
 - name: Bug
   color: f5f7f9
   description: "An update to fix incorrect code or typos."

.github/workflows/label_check.yml

@@ -0,0 +1,21 @@
+name: Label Checker
+on: # yamllint disable-line rule:truthy
+  pull_request:
+    branches:
+      - main
+    types:
+      - opened
+      - synchronize
+      - reopened
+      - labeled
+      - unlabeled
+
+jobs:
+  check_stats_labels:
+    name: Check Stats labels
+    runs-on: ubuntu-latest
+    steps:
+      - uses: docker://agilepathway/pull-request-label-checker:latest
+        with:
+          one_of: Enhancement,Bug
+          repo_token: ${{ secrets.GITHUB_TOKEN }}