add the filament voltage to the set of rampeable attributes.
resize (made them bigger) the tool windows (events and ramping).
add the switch attributes to the ramping window.

git-svn-id: svn+ssh://controls01/siciliarep/svn/trunk/tango_client/ctlinac/trunk@13203 a18efa20-c439-0410-bf20-9b91ec695b4c