fix the issues with the events after the rewrite the plcAttrEvents method. Check with floats, integers, strings and booleans (specially resets).

git-svn-id: https://svn.code.sf.net/p/tango-ds/code/DeviceClasses/AcceleratorComponents/LinacAlba/trunk@18766 3b39871e-fe4b-0410-b5db-e82997f68959