wrap all library code into namespace if VCMI_LIB_NAMESPACE is defined

preparation for having client and server in a single process

lib/vcmi_endian.h

@@ -12,6 +12,8 @@
 //FIXME:library file depends on SDL - make cause troubles
 #include <SDL_endian.h>
 
+VCMI_LIB_NAMESPACE_BEGIN
+
 /* Reading values from memory.  
  *
  * read_le_u16, read_le_u32 : read a little endian value from
@@ -68,3 +70,5 @@ static inline std::string readString(const ui8 * buffer, int & i)
 	}
 	return ret;
 }
+
+VCMI_LIB_NAMESPACE_END