Add an option to disable auto (random) echo of buffer status

[realshovanshah]

Hey, thanks for this minimal plugin.

Could we have an option to disable the call to echo() on CursorHold event?

The default behaviour on events like BufWinEnter, WinEnter, InsertLeave, VimResized is perfect but the CursorHold event causes the messege to flicker at unwanted times. At its worst, this can also block some important message the user is reading (in the "command bar").

Looks like it's been a bit deserted here lately, so hope the plugin isn't "complete" (and everything is okay).