Merge branch '1-add-minimal-empty-application' into 'master'

Resolve "Add minimal empty application"

Closes #1

See merge request !1

android/gradle.properties

+org.gradle.jvmargs=-Xmx1536M
+android.useAndroidX=true
+android.enableJetifier=true
+app.versionName=0.0.1
+app.versionCode=1

android/gradle/wrapper/gradle-wrapper.properties

+#Fri Jun 23 08:50:38 CEST 2017
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.7-all.zip

android/settings.gradle

+include ':app'
+
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
+
+assert localPropertiesFile.exists()
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
+
+def flutterSdkPath = properties.getProperty("flutter.sdk")
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"

fastlane/metadata/android/en-US/changelogs/1.txt

+Add initial empty app

fastlane/metadata/android/en-US/changelogs/2.txt

+Improve CI/CD, add jabber notification on create tag

fastlane/metadata/android/en-US/changelogs/3.txt

+Add minimal playable game.

fastlane/metadata/android/en-US/changelogs/4.txt

+Finalize minimal gameplay.

fastlane/metadata/android/en-US/changelogs/5.txt

+Remove flag on cell when explored.

fastlane/metadata/android/en-US/changelogs/6.txt

+Ensure first cell is not mined (postone put mines on board)

fastlane/metadata/android/en-US/full_description.txt

+Simple Reversi Game