moved mod-related files to new directory

lib/modding/CModVersion.h

@@ -0,0 +1,39 @@
+/*
+ * CModVersion.h, part of VCMI engine
+ *
+ * Authors: listed in file AUTHORS in main folder
+ *
+ * License: GNU General Public License v2.0 or later
+ * Full text of license available in license.txt file, in main folder
+ *
+ */
+
+#pragma once
+
+VCMI_LIB_NAMESPACE_BEGIN
+
+struct DLL_LINKAGE CModVersion
+{
+	int major = 0;
+	int minor = 0;
+	int patch = 0;
+
+	CModVersion() = default;
+	CModVersion(int mj, int mi, int p): major(mj), minor(mi), patch(p) {}
+
+	static CModVersion GameVersion();
+	static CModVersion fromString(std::string from);
+	std::string toString() const;
+
+	bool compatible(const CModVersion & other, bool checkMinor = false, bool checkPatch = false) const;
+	bool isNull() const;
+
+	template <typename Handler> void serialize(Handler &h, const int version)
+	{
+		h & major;
+		h & minor;
+		h & patch;
+	}
+};
+
+VCMI_LIB_NAMESPACE_END