weblogic-certificate plugin

Initial version of the weblogic-certificate plugin

Introduces 2 new Containers:
- CustomTrustKeyStore
- CustomIdentityKeyStore

and 2 Deployables
- TrustCertificateSpec
- IdentityCertificateSpec

and an SSL Channel restart contributor
I don't think it works, getObjectName returns a 'fully qualified' formatted name

public String getObjectName() {
    return "com.bea:Name=" + getName() + ",Type=Server";
}