Added python samples to relationships idiom
Added python samples to relationships idiom

jburns12/stixproject.github.io,johnwunder/johnwunder.github.io,STIXProject/stixproject.github.io,jburns12/stixproject.github.io,STIXProject/stixproject.github.io,johnwunder/johnwunder.github.io,jburns12/stixproject.github.io,STIXProject/stixproject.github.io,STIXProject/stixproject.github.io,johnwunder/johnwunder.github.io,jburns12/stixproject.github.io,johnwunder/johnwunder.github.io