Create miscLib-sample.js

dev sample for misc 'extended REPL tools',
and other misc shorthand functions.

-Use load(thisfile).
-Or require('lib/thisfile') if in the lib dir.

In REPL...

$VIMEDIT(optional "dir/file");
$CMD("needs command string");
$RUN("needs dir file string");
$PWD();  no arg
$LS();  no arg   

-This will convert into file:lib/misc-dev/miscLib-dev.js
-Then onto lib/misc.js