Add my own math library

GLM works only for C++ and I plan on moving to back to C. There is
a C port, but it would be good for me to figure out vertex math myself.
Hence, my own library has been created.

utilities/localization.h

@@ -1,5 +1,5 @@
 /**
- * @file localization.hpp
+ * @file localization.h
  * @author Piotr Krygier (everyonencancode@gmail.com)
  * @brief Simple localization header
  * @version 0.1
@@ -9,11 +9,11 @@
  *
  */
 
-#pragma once
-#define SELECTED_LANGUAGE rse::utils::locale::EN_US
+#ifndef LOCALIZATION_H
+#define LOCALIZATION_H
 
-namespace rse::utils::locale
-{
+#define SELECTED_LANGUAGE EN_US
+#define MAX_MESSAGE_LENGHT 128
 
 /**
  * @brief Available languages
@@ -25,4 +25,4 @@ enum Languages_t
     LAST_LANGUAGE
 };
 
-}  // namespace rse::locale
+#endif /* LOCALIZATION_H */