General btest cleanup

- Use `-b` most everywhere, it will save time.

- Start some intel tests upon the input file being fully read instead of
  at an arbitrary time.

- Improve termination condition for some sumstats/cluster tests.

- Filter uninteresting output from some supervisor tests.

- Test for `notice_policy.log` is no longer needed.

testing/btest/scripts/base/protocols/ssl/comp_methods.test

@@ -1,8 +1,10 @@
 # This tests that the values sent for compression methods are correct.
 
-# @TEST-EXEC: zeek -r $TRACES/tls/tls-conn-with-extensions.trace %INPUT
+# @TEST-EXEC: zeek -b -r $TRACES/tls/tls-conn-with-extensions.trace %INPUT
 # @TEST-EXEC: btest-diff .stdout
 
+@load base/protocols/ssl
+
 event ssl_client_hello(c: connection, version: count, record_version: count, possible_ts: time, client_random: string, session_id: string, ciphers: index_vec, comp_methods: index_vec)
 	{
 	print comp_methods;