Error codes and path checks for use in automation

[aceslick911]

For yurl to be super useful as part of automation/testing I'd recommend throwing an error code in the CLI when the deeplinking is presumed to be not working due to a failure condition.

This would mean teams could potentially use yurl commands in CI or automation to detect when problems with deeplinking happen.

Specifics:

• should not throw error code if CDN AASA is out of date - this would cause CI to not be very useful during PRs before 'releases'
• we should add code to validate the AASA against spec provided by apple (applinks, details, paths, webcredentials)
• we could add code to validate url PATHS against the AASA defined paths and/or appid

eg.

> yurl aasa validate "https://MYDOMAIN.com/PATH1/PATH2" "1234AAAA" "com.MYDOMAIN.MYAPP.APP"

< AASA Active validation [pass]
< AASA path: /PATH1/PATH2 [failed: no match for "com.MYDOMAIN.MYAPP.APP"]
< "/PATH1/PATH2" provided does not match any of:
< https://MYDOMAIN.com/PATH3
< https://MYDOMAIN.com/PATH4

exited with error code 1