iPro: Fix define Hmtl_Print -> Html_Print

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@46062 4005530d-fff6-0310-9dd1-cebe43e6787f
iProExample: Define "Html_Print" and pass it to iPro library. Fixes compilation. Issue #26597

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@46063 4005530d-fff6-0310-9dd1-cebe43e6787f