[CBRD-22793] C++ regex gives a different result and error message on Windows

[hgryoo]

http://jira.cubrid.org/browse/CBRD-22793

1. collating element syntax doesn't work well. e.g.) [[.tilde.]], [[.ch.]] and it returns always true on Windows(MSVC). To handle this issue, an error_collate exception is thrown for both linux and windows when there exists the syntax.
   • cub_reg_traits::lookup_collatename() is going to be invoked on g++
   • cub_reg_traits::lookup_collatename() is not invoked on MSVC even there exists the syntax in pattern. As a hacky way, the collation element syntax pattern is going to be searched in pattern string. Then if the syntax is found, it throws an exception.
2. regex_error::what() gives a different level of error message depending on the compiler.
3. added new header and source for regex related functions. (string_opfunc.c file becomes too long)