madtty: interpret cursor control characters inside ESC sequences
madtty: interpret cursor control characters inside ESC sequences

Signed-off-by: Marc Andre Tanner <cc7c5be316e48d137cbb549833b85d91034d799d@brain-dump.org>

lotrfan/dvtm,benjohnson2001/dvtm,raedwulf/dvtm,medgar123/dvtm,gridsystem/dvtmx,seanyeh/dvtm,delphinus35/dvtm,benjohnson2001/dvtm,raedwulf/dvtm,armanbilge/dvtm,seanyeh/dvtm,samaaron/dvtm,seanyeh/dvtm,benjohnson2001/dvtm,medgar123/dvtm,gridsystem/dvtmx,lotrfan/dvtm,tgvaughan/dvtm,armanbilge/dvtm,tgvaughan/dvtm,samaaron/dvtm,lotrfan/dvtm,delphinus35/dvtm,medgar123/dvtm,tgvaughan/dvtm,raedwulf/dvtm