Add more character sets to tcs(1).
 [rsc] --rw-rw-r-- M 1428987 rsc sys 16466 Jan 27 12:26 sys/src/cmd/tcs/8859.h
 [rsc] --rw-rw-r-- M 1428987 rsc sys 19274 Jan 27 12:26 sys/src/cmd/tcs/misc.h
 [rsc] --rw-rw-r-- M 1428987 rsc sys 44069 Jan 27 12:26 sys/src/cmd/tcs/ms.h