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!

[sockman]
protocols= winsocktcp,winsockudp,tcp,udp,ip

[winsocktcp]
filename= winsock.prt
index= 1

[winsockudp]
filename= winsock.prt
index= 2

[tcp]
filename= winsock.prt
index= 3

[udp]
filename= winsock.prt
index= 4

[ip]
filename= winsock.prt
index= 5