Add versioning (WIP)

* Gradle Git Versioning Plugin
* Changelog
* Flatpack build workflow

desktop/build.gradle.kts

@@ -1,4 +1,6 @@
-import org.jetbrains.compose.desktop.application.dsl.TargetFormat
+import org.jetbrains.compose.desktop.application.dsl.TargetFormat.Deb
+import org.jetbrains.compose.desktop.application.dsl.TargetFormat.Dmg
+import org.jetbrains.compose.desktop.application.dsl.TargetFormat.Msi
 
 plugins {
     alias(libs.plugins.kotlin.kover)
@@ -29,18 +31,31 @@ compose.desktop {
         mainClass = "ch.dissem.yaep.ui.desktop.MainKt"
 
         nativeDistributions {
-            targetFormats(TargetFormat.Dmg, TargetFormat.Msi, TargetFormat.Deb)
+            val formats = mutableListOf(Deb)
             packageName = "YAEP"
-            packageVersion = libs.versions.app.version.name.get()
-            macOS {
-                iconFile.set(project.file("icon.icns"))
+            val baseVersion = version.toString()
+            packageVersion = baseVersion
+            if (baseVersion.matches(Regex("[1-9][0-9]*(\\.[0-9]+)(\\.[0-9]+)"))) {
+                formats.add(Dmg)
+                macOS {
+                    iconFile.set(project.file("icon.icns"))
+                }
             }
-            windows {
-                iconFile.set(project.file("icon.ico"))
+            if (baseVersion.matches(Regex("[1-2]?[0-9]?[0-9]\\.[1-2]?[0-9]?[0-9]\\.[1-6]?[0-9]?[0-9]?[0-9]?[0-9]"))) {
+                windows {
+                    formats.add(Msi)
+                    iconFile.set(project.file("icon.ico"))
+                }
             }
             linux {
+                debPackageVersion = if (baseVersion.first().isDigit()) {
+                    baseVersion
+                } else {
+                    "0-$baseVersion"
+                }
                 iconFile.set(project.file("icon.png"))
             }
+            targetFormats(*formats.toTypedArray())
 
             buildTypes.release.proguard {
                 configurationFiles.from(project.file("proguard-rules.pro"))