g13: Add functions to handle uint in a keyblob.
* g13/utils.c (append_tuple_uint): New. (find_tuple_uint): New. * g13/t-utils.c: New. * g13/Makefile.am (noinst_PROGRAMS, TESTS): New. (module_tests, t_common_ldadd): New. (t_utils_SOURCES, t_utils_LDADD): New.
- Signed-off-by: Werner Koch <wk@gnupg.org>