Added infrastructure to bundle up certificates

[juancarlostong]

Added three Optimizely public certificates

• cdn.optimizely.com
• logx.optimizely.com
• api.optimizely.com

Updated Copy Bundle Phase of for OptimizelySDKCore.podspec to bumdle the three certficates Updated the PodSpec for Cocoapods to create a bundled resource

Summary

• The "what"; a concise description of each logical change
• Another change

The "why", or other context.

Test plan

Issues

• "THING-1234" or "Fixes #123"