add imagestream and examples for python 2.7 and 3.6 on ppc64le
add imagestream and examples for python 2.7 and 3.6 on ppc64le

openshift/sti-python,soltysh/sti-python,pkubatrh/s2i-python-container,soltysh/sti-python,sclorg/s2i-python-container,sclorg/s2i-python-container,pkubatrh/s2i-python-container,openshift/sti-python