ci: Add CI (#21)

.github/PULL_REQUEST_TEMPLATE.md

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+<!--
+Thanks for your Pull Request, Please provide the related Issue using "Fix #0" or describe the change(s) you made.
+-->

.github/dependabot.yml

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+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://help.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  - package-ecosystem: gradle
+    directory: "/"
+    schedule:
+      interval: daily
+    ignore:
+      - dependency-name: "*"
+        update-types: ["version-update:semver-minor", "version-update:semver-patch"]
+
+  - package-ecosystem: gradle
+    directory: "/app"
+    schedule:
+      interval: daily
+    commit-message:
+      prefix: build
+    ignore:
+      - dependency-name: "*"
+        update-types: ["version-update:semver-minor", "version-update:semver-patch"]
+
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "daily"
+    commit-message:
+      prefix: build
+    ignore:
+      - dependency-name: "*"
+        update-types: ["version-update:semver-minor", "version-update:semver-patch"]

.github/scripts/gradlew_recursive.sh

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+#!/bin/bash
+
+# Copyright (C) 2020 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -xe
+
+# Default Gradle settings are not optimal for Android builds, override them
+# here to make the most out of the GitHub Actions build servers
+GRADLE_OPTS="$GRADLE_OPTS -Xms4g -Xmx4g"
+GRADLE_OPTS="$GRADLE_OPTS -XX:+HeapDumpOnOutOfMemoryError"
+GRADLE_OPTS="$GRADLE_OPTS -Dorg.gradle.daemon=false"
+GRADLE_OPTS="$GRADLE_OPTS -Dorg.gradle.workers.max=2"
+GRADLE_OPTS="$GRADLE_OPTS -Dkotlin.incremental=false"
+GRADLE_OPTS="$GRADLE_OPTS -Dkotlin.compiler.execution.strategy=in-process"
+GRADLE_OPTS="$GRADLE_OPTS -Dfile.encoding=UTF-8"
+export GRADLE_OPTS
+
+# Crawl all gradlew files which indicate an Android project
+# You may edit this if your repo has a different project structure
+for GRADLEW in `find . -name "gradlew"` ; do
+    SAMPLE=$(dirname "${GRADLEW}")
+    # Tell Gradle that this is a CI environment and disable parallel compilation
+    bash "$GRADLEW" -p "$SAMPLE" -Pci --no-parallel --stacktrace $@
+done
+

.github/workflows/build.yml

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+# Copyright (C) 2020 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: Android CI
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: set up JDK 11
+        uses: actions/setup-java@v3
+        with:
+          java-version: '11'
+          distribution: 'adopt'
+          cache: gradle
+      - name: Build project
+        run: |
+          chmod +x .github/scripts/gradlew_recursive.sh
+          .github/scripts/gradlew_recursive.sh assembleDebug
+      - name: Zip artifacts
+        run: zip -r assemble.zip . -i '**/build/*.apk' '**/build/*.aab' '**/build/*.aar' '**/build/*.so'
+#       - name: Upload artifacts
+#         uses: actions/upload-artifact@v3
+#         with:
+#           name: assemble
+#           path: assemble.zip
+      - name: ktlint
+        uses: ScaCap/action-ktlint@master
+        with:
+          github_token: ${{ secrets.github_token }}
+          android: true
+          reporter: github-pr-review # Change reporter