Github-Actions: Adding pr title and label checks (algorand#336)

.github/release.yml

@@ -0,0 +1,20 @@
+changelog:
+  exclude:
+    labels:
+      - Skip-Release-Notes
+  categories:
+    - title: Bugfixes
+      labels:
+        - Bug-Fix
+    - title: New Features
+      labels:
+        - New Feature
+    - title: Enhancements
+      labels:
+        - Enhancement
+    - title: Not Yet Enabled
+      labels:
+        - Not-Yet-Enabled
+    - title: Other
+      labels:
+        - "*"

.github/workflows/pr-type-category.yml

@@ -0,0 +1,24 @@
+name: Check PR category and type
+on:
+  pull_request:
+    branches:
+      - develop
+    types: [opened, synchronize, reopened, labeled, unlabeled, edited]
+jobs:
+  check_label:
+    runs-on: ubuntu-latest
+    name: Check PR Category and Type
+    steps:
+      - name: Checking for correct number of required github pr labels
+        uses: mheap/github-action-required-labels@v2
+        with:
+          mode: exactly
+          count: 1
+          labels: "New Feature, Enhancement, Bug-Fix, Not-Yet-Enabled, Skip-Release-Notes"
+
+      - name: "Checking for PR Category in PR title. Should be like '<category>: <pr title>'."
+        run: |
+          if [[ ! "${{ github.event.pull_request.title }}" =~ ^.{2,}\:.{2,} ]]; then
+            echo "## PR Category is missing from PR title. Please add it like '<category>: <pr title>'." >> GITHUB_STEP_SUMMARY
+            exit 1
+          fi