Adding helper class to monitor bundle + prereq status as a single %.
#tests iOS Client
#rb none
[CODEREVIEW] [at]Justin.Marcus,[at]Daniel.Lamb
#ROBOMERGE-OWNER: ben.marsh
#ROBOMERGE-AUTHOR: thomas.ross
#ROBOMERGE-SOURCE: CL 7238071 via CL 7238129 via CL 7247123 via CL 7247172
#ROBOMERGE-BOT: BUILD (Main -> Dev-Build) (v371-7306989)
[CL 7332797 by thomas ross in Dev-Build branch]