update parser

sources/Exception/Error.cpp

@@ -0,0 +1,16 @@
+//
+// Created by hbenjamin on 11/06/2021.
+//
+
+#include "Error.hpp"
+
+namespace BBM
+{
+	Error::Error(const std::string &what)
+			: std::runtime_error(what)
+	{}
+
+	ParserError::ParserError(const std::string &what)
+			: WalError(what)
+	{}
+} // namespace BBM