Method local2wide

sources/compiler/lexer.cpp:67–72

namespace cs {
	namespace codecvt {
		std::u32string utf8::local2wide(const std::deque<char> &local)
		{
			std::u32string ustr;
			::utf8::utf8to32(local.begin(), local.end(), std::back_inserter(ustr));
			return ustr;
		}

		std::u32string utf8::local2wide(std::string_view local)
		{