Rework `IsCertificateUpdateRequired` method about sdl_core_winport

[malirod]

CryptoManagerImpl::set_certificate should be refactored. The first half of the method which doesn't change the invariant of the CryptoManagerImpl should be extracted.

starting from the SSL_CTX_use_certificate call the CryptoManagerImpl invariant changes. This should be handled correctly.
Currently it's possible that during first call of the set_certificate the certificate_exists_ wil lbe set to true. But on the second call, during the SSL_CTX_use_certificate call or after we will exit the method. and the flag will be still true. There is no reset before the calls which can change the invariant.

Also it's clear is what is going on with the CryptoManagerImpl invariant after the failed call of the SSL_CTX_check_private_key. Possibly the CryptoManagerImpl becomes invalid, thus there should be some additional handling. Possibly just write to the log and exit is not enough.

[malirod]

Resolved with #131