Added ==smoke-test support and ciftest command. Commands can now define a "==smoke-test" section in their CIF files, which defines a snippet of fshell script that will be run as part of "fshell smoketest" or by invoking ciftest directly. See the ciftest documentation for more details. Added ==smoke-test sections to a few commands, the ones that were easy to test!

EXPORTS
	pcre_callout @ 1 NONAME
	pcre_compile @ 2 NONAME
	pcre_compile2 @ 3 NONAME
	pcre_config @ 4 NONAME
	pcre_exec @ 5 NONAME
	pcre_free @ 6 NONAME
	pcre_fullinfo @ 7 NONAME
	pcre_info @ 8 NONAME
	pcre_malloc @ 9 NONAME
	pcre_stack_free @ 10 NONAME
	pcre_stack_malloc @ 11 NONAME
	pcre_study @ 12 NONAME