Function hashToLower

include/eepp/core/string.hpp:91–98

	}

	static constexpr String::HashType hashToLower( const char* str, Int64 len ) {
		String::HashType hash = 5381;
		while ( --len >= 0 ) {
			int c = *str++;
			hash = ( ( hash << 5 ) + hash ) + ( c >= 'A' && c <= 'Z' ? c + 32 : c );
		}
		return hash;
	}

	/** Escape string sequence */
	static String escape( const String& str );