Add versioning (WIP)

* Gradle Git Versioning Plugin
* Changelog
* Flatpack build workflow

build.gradle.kts

@@ -8,6 +8,7 @@ plugins {
     alias(libs.plugins.versions)
     alias(libs.plugins.sonarqube)
     alias(libs.plugins.kotlin.kover)
+    alias(libs.plugins.versioning)
     alias(libs.plugins.android.application) apply false
     alias(libs.plugins.android.library) apply false
     alias(libs.plugins.compose) apply false
@@ -17,6 +18,24 @@ plugins {
     alias(libs.plugins.kotlin.android) apply false
 }
 
+version = "0.0.0-SNAPSHOT"
+gitVersioning.apply {
+    refs {
+        branch(".+") {
+            considerTagsOnBranches = true
+            version = "\${ref}-SNAPSHOT"
+        }
+        tag("(?<version>.*)") {
+            version = "\${ref.version}"
+        }
+    }
+
+    // optional fallback configuration in case of no matching ref configuration
+    rev {
+        version = "\${commit}"
+    }
+}
+
 sonar {
     properties {
         property("sonar.projectKey", "YAEP")