Merge branch 'master' into intellij_live_template

.github/stale.yml

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+# Number of days of inactivity before an issue becomes stale
+daysUntilStale: 60
+# Number of days of inactivity before a stale issue is closed
+daysUntilClose: 7
+# Issues with these labels will never be considered stale
+exemptLabels:
+  - not-stale
+  - pinned
+  - security
+# Label to use when marking an issue as stale
+staleLabel: stale
+# Comment to post when marking an issue as stale. Set to `false` to disable
+markComment: >
+  This issue has been automatically marked as stale because it has not had
+  activity in the past 60 days. It will be closed in seven days if no 
+  further activity occurs. Thank you for your contributions.
+# Comment to post when closing a stale issue. Set to `false` to disable
+closeComment: false

.github/workflows/run-percy-tests.yml

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+name: Percy Tests
+on:
+  push:
+    paths:
+    - '*.puml'
+    - 'percy/**'
+    - '.github/workflows/run-percy-tests.yml'
+  pull_request:
+    branches:
+    - '**'
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@master
+      - name: Setup Graphviz
+        uses: ts-graphviz/setup-graphviz@v1
+      - name: Process diagrams
+        uses: Timmy/plantuml-action@v1
+        with:
+          args: '-v percy -o _parsed -DRELATIVE_INCLUDE="."'
+      - name: Upload
+        run: npx percy upload percy/_parsed
+        env:
+          PERCY_TOKEN: ${{ secrets.PERCY_TOKEN }}