Port(reassigned) MASTG-TEST-0015: Testing the Purposes of Keys (android) (by @guardsquare)

[serek8]

This PR closes #2948

Description

I took over this issue from @nmsa. Here is the original PR #3036

In the old mastg test, we look for:

• classes Cipher, Mac, MessageDigest, Signature
• interfaces Key, PrivateKey, PublicKey, SecretKey
• functions getInstance, generateKey
• exceptions KeyStoreException, CertificateException, NoSuchAlgorithmException
• classes importing java.security.*, javax.crypto.*, android.security.*, android.security.keystore.*

Not sure if we need all that. In this PR, I plan to test only how a key is generated. Therefore, I want to focus on KeyGenParameterSpec.Builder and its KeyProperties during a key creation. Please see the static test I added.

Please correct me if I'm wrong and I still need to verify classes, exceptions and imports. For now I can only see value in verifying the purpose of the key during creation.