v1.13 released of the PropertyGrid template. New version uploaded to Members area

Modifications include:-

* New 'Child of Child' facility added.
* New method added - 'GetCategoryExpanded'
* New method added - 'GetCategoryProperty'
* New method added - 'GetItemExpanded'
* New method added - 'GetItemProperty'
* New method added - 'GetProperty'
* New method added - 'SetCategoryProperty'
* New method added - 'SetItemExpanded'
* New method added - 'SetItemProperty'
* New method added - 'SetProperty'
* Codejock v13.2.2 compatibility added.