* Don't return `true` with WiFiClientSecureBearSSL::connected() when disconnected
Apply the same condition as with normal WiFiClient - we are not connected
when it's not possible to both write and read.
Implement separate methods for actual connection status and the internal
ssl engine status and update methods that were previously using available()
for this purpose
Update examples to check available() when the intent is to only read the
data and not interact with the client in any other way. Also, use connect()
as a way to notify errors, no need to check things twice
BearSSLX509List, BearSSLSession, BearSSLPublicKey, and BearSSLPrivateKey
were all in the global namespace and not in the BearSSL:: one, due to an
oversight when they were originally created. Move them to the proper
namespace with the following mapping:
BearSSLX509List => BearSSL::X509List
BearSSLSession => BearSSL::Session
BearSSLPublicKey => BearSSL::PublicKey
BearSSLPrivateKey => BearSSL::PrivateKey
SSL Sessions enable most of the SSL handshake to be skipped when both
client and server agree to use them. Add a BearSSLSession class and
an optional setting to the SSL client to enable this.
Note that SSL sessions are unrelated to HTTP sessions. They are
ephemeral and only relate to the SSL parameters, not anything at
the HTTP protocol level.
