bit string functions

I have been working extensively with the bit string data type.
I have a number of useful c-language functions to
set/clear a bit, count number of bits set, inquire if
a bit is set/clear, etc.
I don't see functions like these as part of any SQL standard,
(although I think they ought to be).

I would like to make these a part of postgresql for others to use.
Is it more appropriate for these to be in contrib code
or part of the postgresql proper?
How can I contribute these?

TJ
-- 
TJ O'Donnell, Ph.D.
President, gNova Inc.
tjo@gnova.com
http://www.gnova.com