Implement missing sysconf definitions
completed by: Przemysław Buczkowski
mentors: Barrett, Eugene Katashov, Jérôme Duval, Siarzhuk Zharski, pradeeban
Determine which definitions are missing from sysconf(), make a list of them and attach it to http://dev.haiku-os.org/ticket/2044
There may be a follow on task to implement the missing definitions.