added COPY prices, tested copy works
report total_pages in .COPY and .DONE
fix .END and closed connection on terminal side
skeleton for ACTION LIST and ACTION PRINT
fix connection end .END/.DONE
implement nop sending every 5s if idle using alarm
fix nop
test on real device, scanning somewhat work other things don't yet
implement CREDIT and COPY
added emulator and improve server to interoperate
begin of SafeQ terminal server replacement