Reloading binary/folder should also reload gdb’s window

Is your feature request related to a problem? Please describe. Since gdbgui is separate from my code editor, I let it run while rebuilding. Then I want to debug something else so I hit:

1. The "load binary" button
2. The "load file" button
3. Since because of #499 I used the gdb window, I also had to send it the directory command (just discovered it)

Describe the solution you'd like I would love if one of the button reloaded everything. Maybe gdbgui could auto-reload (or open a popup to ask the user if it should) when inotify signal a fs change

Describe alternatives you've considered Clicking 2 buttons, re opening the files (rust experience is not optimal), AND telling gdb about the change.