Refactored %x and %X escapes into WinArgv handler
Corrected display bug with %x and %X escapes when !win

The escape character was being output.
WINMSG_* => WINESC_* for WinMsgEscapeChar
Refactored %f escape into Wflags handler
Refactored %S escape sequence into SessName handler
Refactored %H escape sequence into HostName handler
Refactored %F escape sequence into Focus handler
Refactored %t escape sequence into WinTitle handler
Refactored %E escape sequence into EscSeen handler