feat(@schematics/angular): save ng new options as defaults

[cyrilletuzi]

If I create an app with the CLI with the --inline-template option, I don't just want the AppComponent with inline template, I surely want inline templates everywhere.

Same goes for --inline-style and --skip-tests.

So this PR save the options used during ng new, which are related to future generate commands, as defaults in .angular-cli.json.

This is particularly helpful for beginners : skipping tests (= less files to mess with) and inlining templates (easier to see relations between class and view) is better to learn at first, but having to reconfigure the .angular-cli.json after the ng new is cumbersome, especially when people don't understand yet at this time what they are configuring.

I just need confirmation that || and && operators work here, but I suppose the tests will answer this question.

Fixes angular/angular-cli#8004

[cyrilletuzi]

@Brocco @hansl

[filipesilva]

Thanks for fixing this @cyrilletuzi 👍