Move SSLContextBuilder to a new wildfly-elytron-ssl-builder module

As described in ELY-2506, we should:

• Copy the SSLContextBuilder class to a new wildfly-elytron-ssl-builder module.
• Deprecate the existing class.
• SSLContextBuilder makes use of org.wildfly.security.evidence.X509PeerCertificateChainEvidence, which is part of the wildfly-elytron-credential module. This module is what brings in dependencies on slf4j and sshd-common. We could split out the org.wildfly.security.evidence classes into a new wildfly-elytron-evidence module to reduce the dependencies here so wildfly-elytron-ssl-builder could just depend on wildfly-elytron-evidence instead of wildfly-elytron-credential.
• Review the resulting mvn dependency:tree from wildfly-elytron-ssl-builder.