Incorrect property parsing form YAML

[ikonkere]

In this line:

kumuluzee-jwt-auth/src/main/java/com/kumuluz/ee/jwt/auth/cdi/JWTContextInfo.java

Line 70 in 5f30988

publicKey = config.get("mp.jwt.verify.publickey")

publicKey will not be null if mp.jwt.verify.publickey.location property is specified in YAML config, which in turn will result in a critical exception because of misconfiguration.

Also it says here: https://github.com/eclipse/microprofile-jwt-auth/blob/master/spec/src/main/asciidoc/configuration.asciidoc that this property supports JWKS, which essentially means that both it and kumuluzee.jwt-auth.jwks-uri are equivalent in case of JWKS and both must be used to construct the token validator.

[gpor0]

This PR should resolve this issue with 85caf20#diff-713e0ca9d2e085813430b588c5d5f9a92ba914923c25417cccd7770b592226b1R81