add release workflow

add missing LICENSE
move updatestream to github

Author: Branko Wilhelm

.github/FUNDING.yml

@@ -0,0 +1 @@
+custom: ["https://www.paypal.me/b2un0/EUR"]

.github/workflows/release.yml

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+name: 'release'
+
+on:
+    create:
+        tags:
+
+jobs:
+    release:
+        runs-on: ubuntu-latest
+        steps:
+            -   name: Checkout
+                uses: actions/checkout@v1
+
+            -   name: Inject slug/short variables
+                uses: rlespinasse/[email protected]
+
+            -   name: Find and Replace
+                uses: shitiomatic/str-replace@master
+                with:
+                    find: "@REVISION@"
+                    replace: "${{ env.GITHUB_REF_SLUG }}"
+                    include: "./*.xml"
+
+            -   name: Archive Release
+                uses: thedoctor0/zip-release@master
+                with:
+                    filename: "${{ github.event.repository.name }}.zip"
+                    exclusions: '*.git* /screenshots/* updatestream.xml'
+
+            -   name: Create Release
+                id: create_release
+                uses: actions/create-release@v1
+                env:
+                    GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+                with:
+                    tag_name: ${{ github.ref }}
+                    release_name: ${{ env.GITHUB_REF_SLUG }}
+                    draft: false
+                    prerelease: false
+
+            -   name: Upload Release Asset
+                uses: actions/upload-release-asset@v1
+                env:
+                    GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+                with:
+                    upload_url: ${{ steps.create_release.outputs.upload_url }}
+                    asset_path: ${{ github.event.repository.name }}.zip
+                    asset_name: ${{ github.event.repository.name }}.zip
+                    asset_content_type: application/zip