HPCC-11770 Permissions CheckBoxes are not holding their values.

Switched to using dijit.forms.CheckBoxes as native checkboxes were never
supported 100% by dgrid.

Fixes HPCC-11770

Signed-off-by: Gordon Smith <gordon.smith@lexisnexis.com>
Merge pull request #6123 from GordonSmith/HPCC-11770

HPCC-11770 Permissions CheckBoxes are not holding their values.

Reviewed-By: Miguel Vazquez <miguel.vazquez@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>