Enable OCSP logging by default.

In the past I thought that this is not super interesting. However, it
turns out that this can actually contain a slew of interresting
information - like operating systems querying for the revocation of
software signing certificates, e.g.

So - let's just enable this as a default log for the future.

scripts/base/files/x509/certificate-event-cache.zeek

@@ -8,6 +8,8 @@
 ##! the parsing of certificate information in the core is disabled. Instead, the cached events
 ##! and data structures from the previous certificates are used.
 
+@load ./main
+
 module X509;
 
 export {