Do not inform of mod update if remote version is older than local

lib/modding/ModDescription.cpp

@@ -216,4 +216,18 @@ bool ModDescription::affectsGameplay() const
 	return false;
 }
 
+bool ModDescription::isUpdateAvailable() const
+{
+	if (getRepositoryValue("version").isNull())
+		return false;
+
+	if (getLocalValue("version").isNull())
+		return false;
+
+	auto localVersion = CModVersion::fromString(getLocalValue("version").String());
+	auto repositoryVersion = CModVersion::fromString(getRepositoryValue("version").String());
+
+	return localVersion < repositoryVersion;
+}
+
 VCMI_LIB_NAMESPACE_END