Moving sm_print_r back to globals.php; tired of it not being available when developin...

Moving sm_print_r back to globals.php; tired of it not being available when developing - that's what it's for, more than being available for actual code use as a string function in a file that's not included high enough.  Also new directory parsing fxn.

git-svn-id: https://svn.code.sf.net/p/squirrelmail/code/trunk/squirrelmail@11751 7612ce4b-ef26-0410-bec9-ea0150e637f0