Also output the executed command when interacting with the interactive controller

[sonrad10]

Currently, only the output is outputted when a method is called with output=true. This leads to outputs like the following:

Program 'add' loaded.
HWhile> 
No breakpoints set.
HWhile> 
Breakpoint set in program true at line 5.
HWhile> 
wrote Y = <nil.<nil.<nil.<nil.<nil.<nil.<nil.<nil.<nil.<nil.<nil.nil>>>>>>>>>>>
HWhile> 

It would make more sense if the executed commands were also added to the output, to produce this:

:load add
Program 'add' loaded.
HWhile> :break
No breakpoints set.
HWhile> :break 5
Breakpoint set in program true at line 5.
HWhile> :run
wrote Y = <nil.<nil.<nil.<nil.<nil.<nil.<nil.<nil.<nil.<nil.<nil.nil>>>>>>>>>>>
HWhile>