Added SQL_SetCharset native to (re)set charset even after reconnect (bug 5786, r=psychonic).

extensions/mysql/mysql/MyDatabase.cpp

@@ -326,3 +326,8 @@ IDBDriver *MyDatabase::GetDriver()
 {
 	return &g_MyDriver;
 }
+
+bool MyDatabase::SetCharacterSet(const char *characterset)
+{
+	return mysql_set_character_set(m_mysql, characterset) == 0 ? true : false;
+}

extensions/mysql/mysql/MyDatabase.h

@@ -62,6 +62,7 @@ public: //IDatabase
 	IQuery *DoQueryEx(const char *query, size_t len);
 	unsigned int GetAffectedRowsForQuery(IQuery *query);
 	unsigned int GetInsertIDForQuery(IQuery *query);
+	bool SetCharacterSet(const char *characterset);
 public:
 	const DatabaseInfo &GetInfo();
 private: