Implemented VersionService

lib/services/version_service.dart

@@ -0,0 +1,32 @@
+import 'package:cabo_counter/utility/globals.dart';
+import 'package:package_info_plus/package_info_plus.dart';
+
+class VersionService {
+  static String _version = '-.-.-';
+  static String _buildNumber = '-';
+
+  static Future<void> init() async {
+    var packageInfo = await PackageInfo.fromPlatform();
+    _version = packageInfo.version;
+    _buildNumber = packageInfo.buildNumber;
+  }
+
+  static String getVersionNumber() {
+    return _version;
+  }
+
+  static String getVersion() {
+    if (_version == '-.-.-') {
+      return getVersionNumber();
+    }
+    return '${Globals.appDevPhase} $_version';
+  }
+
+  static String getBuildNumber() {
+    return _buildNumber;
+  }
+
+  static String getVersionWithBuild() {
+    return '$_version ($_buildNumber)';
+  }
+}