Allow getting number of active installs for a given extension

{{include document="ActiveInstalls.InstallsWithExtension"/}}

{{velocity}}
#set ($extensions = [
    'org.xwiki.contrib:xwiki-totem-application',
    'jsimard:event-reporter-application',
    'mouhb:likeapplication'
])
|=Extension|=Users
#foreach($ext in $extensions)
  #InstallsWithExtension_get($ext)
  |$ext|$InstallsWithExtension_lastResult
#end
{{/velocity}}