Add use counters for the hspace/vspace attributes on <table>

There's also a Gecko bug and a spec bug on this:
https://bugzilla.mozilla.org/show_bug.cgi?id=725646
https://www.w3.org/Bugs/Public/show_bug.cgi?id=23039

BUG=277080

Review URL: https://codereview.chromium.org/260713002

git-svn-id: svn://svn.chromium.org/blink/trunk@173041 bbb929c8-8fbe-4397-9dbb-9b2b20218538