refactor(ios): parse xcodebuild errors

[TMisiukiewicz]

Summary:

Prettify xcodebuilderror output if not using xcpretty or xcbeautify.

No formatter: Xcpretty: Xcbeautify:

Test Plan:

1. Init new project without installing Cocoapods
2. Run ios command
3. Verify the errors are parsed and marked with a red error prefix in the console output

Checklist

• [x] Documentation is up to date to reflect these changes.
• [x] Follows commit message convention described in CONTRIBUTING.md