Added support for Trusted Types to CSP Evaluator + small bug fixes.

[lweichselbaum]

Summary:

• added support for trusted-types and require-for-trusted-types directives ( resolves #17 )
• added syntax checks for trusted-types directives
• added recommendation for "require-trusted-types-for 'script'"
• added support for 'unsafe-hashes' ( resolves #13 )
• added prefetch-src directive ( resolves #12 )
• enabled deprecation checks by default ( resolves #15 #16 #18 )
• deprecated disown-opener ( resolves #14 )
• undeprecated report-uri since it's basically used everywhere.
• js fixes/formatting
• other small fixes DEMO: https://csp-evaluator.withgoogle.com

[Malvoz]

I'm astonished, thanks!