move composite content view creation to importtools

to reuse it for content host migration as well
add activation keys to simple test
fix bracket for better substitution
let's use Spacewalk 2.2 client as 2nd repository
start creating composite content views for content hosts
check among redhat content view, if id not found among the custom content views

similar to 50154acd01e4e289ab682af7a4fb96972dc82342
associate content views with content hosts
sort persistent maps alphabetically
system_content_views persistant map
add content-host import to the simple test
include persistent map
introduce post_delete
do not delete orgs, since it's disabled