add com.microsoft.playready.recommendation as a recognised key system

[benesva4]

I've added com.microsoft.playready.recommendation as a recognised key system. The keysystems behave almost identically. Function getSupportedKeySystem is then dependant on the name of the key system so there shouldn't be any changes needed there.

I wanted to add a test that would check that both of the key systems to go through defaultFairplayGetCertificate(), but there is no test that check getCeritificate for any key system.

[misteroneill]

Thanks for the PR @benesva4 - one quick question!

[misteroneill]

Should this include the recommendation.3000 variant as well?

[benesva4]

Not in this state. It should be something like:

const isPlayready = [
    'com.microsoft.playready',
    'com.microsoft.playready.recommendation',
    'com.microsoft.playready.recommendation.3000'
    ].includes(keySystem)'

or a little bit less safe keySyste.startsWith('com.microsoft.playready') for .3000 to work. I wanted to add that up but I never got to that.