JBIDE-14597 warning about ng-* attributes used by angular js should be p...

...ossible to ignore

The UI interface is added for HTML5 documents that allows to ignore in validation attribute names specified by a user:
Preference Page, Project Property page and QuickFix are added to allow a user to enable such a facility and to specify
the names of attributes to be ignored by HTMLAttributeValidator

Signed-off-by: vrubezhny <vrubezhny@exadel.com>