* test out GCC & LTO size optimizations, make sure Example App links to our code
* update submodule commit has
* update the base64 for the trustRoot - isrgrootx1
* update code comment
* use testNet
* keep debug symbols
* update lock
* update submodule hash with debug symbols
* go back to part1 savings
* add bitcode support in Mobilecoin.podspec and in LibMobileCoin repo
* Enable bitcode in podspec for all targets, disable bitcode on TestableRelease target so integration tests will pass.
* disable bitcode for integration tests
* udpate submodule hash
* disable bitcode on test targets
* update hash
* revert changes in Example
* remove changes
* podfile.lock
* update podfile and lock, need to revert to remote before merge
* remove xcode 11 from circleCI, 12 is required for app-store submissions since April 2021
* update submodule hash
* update hash, increment pre version
* increment pre version
* use MCO, update submodule hash
* update hashes
* Use remote LibMobileCoin v1.2.0-pre3, update submodule hash.
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