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

extensions/sqlite/driver/SqDatabase.cpp

@@ -254,3 +254,9 @@ sqlite3 *SqDatabase::GetDb()
 {
 	return m_sq3;
 }
+
+bool SqDatabase::SetCharacterSet(const char *characterset)
+{
+	// sqlite only supports utf8 and utf16 - by the time the database is created. It's too late here.
+	return false;
+}

extensions/sqlite/driver/SqDatabase.h

@@ -58,6 +58,7 @@ public:
 	IQuery *DoQueryEx(const char *query, size_t len);
 	unsigned int GetAffectedRowsForQuery(IQuery *query);
 	unsigned int GetInsertIDForQuery(IQuery *query);
+	bool SetCharacterSet(const char *characterset);
 public:
 	sqlite3 *GetDb();
 private: