chore: add hacs.json and release workflow

.github/workflows/release.yaml

@@ -0,0 +1,36 @@
+name: Release
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  release_zip_file:
+    name: Prepare release asset
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v1
+
+      - name: Get Version
+        id: get_version
+        run: echo ::set-output name=VERSION::${GITHUB_REF/refs\/tags\//}        
+
+      - name: "Set version number"
+        run: |
+          sed -i '/VERSION = /c\VERSION = "${{ steps.get_version.outputs.VERSION }}"' ${{ github.workspace }}/custom_components/lifetime_fitness/const.py
+          sed -i '/version/c\  \"version\": \"${{ steps.get_version.outputs.VERSION }}\"' ${{ github.workspace }}/custom_components/lifetime_fitness/manifest.json
+      
+      - name: Zip
+        run: |
+          cd ${{ github.workspace }}/custom_components/lifetime_fitness
+          zip lifetime_fitness.zip -r ./
+      
+      - name: Upload Zip to release
+        uses: svenstaro/upload-release-action@v1-release
+        with:
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          file: ${{ github.workspace }}/custom_components/lifetime_fitness/lifetime_fitness.zip
+          asset_name: lifetime_fitness.zip
+          tag: ${{ github.ref }}
+          overwrite: true

hacs.json

@@ -0,0 +1,8 @@
+{
+    "name": "Life Time Fitness",
+    "domains": ["sensor"],
+    "iot_class": "Cloud Polling",
+    "render_readme": true,
+    "zip_release": true,
+    "filename": "lifetime_fitness.zip"
+}