[Bug 8934] Ensure we create the devices.xml at the same location where we try to read it. Refactor copied method so single method called from SDKManager in core by SDKPreferencePage in ui. Ensure errors are reported in error log. Show dialog when unable to add SDK.

_UI_AddListBoxItem=Add List Box Item
_UI_AddChoiceListItem=Add Choice List Item
_UI_ConfigureSBBType=Select System Building Block Type
_UI_AddViewPage=Add View Page
_UI_SelectViewPage=Select View Page