I can't remember the number of times I have had to ask developers to run `make run-ios | xcbeautify` when debugging iOS build failures and they do not have `xcbeautify` installed on their environment.
`xcbeautify` helps make `xcodebuild` output more readable and to identify problems quickly.
This commit adds `xcbeautify` to iOS shell and to `make run-ios` so that we get readable output by default.
Siddarth Kumar