trappy: Add version
trappy: Add version

Let trappy.__version__ give you the version number.

bjackman/trappy,sinkap/trappy,sinkap/trappy,bjackman/trappy,joelagnel/trappy,bjackman/trappy,JaviMerino/trappy,bjackman/trappy,sinkap/trappy,joelagnel/trappy,ARM-software/trappy,ARM-software/trappy,JaviMerino/trappy,joelagnel/trappy,ARM-software/trappy,sinkap/trappy,ARM-software/trappy,JaviMerino/trappy,joelagnel/trappy