Get rid of prefix and suffix exclusions for hst config properties

we should not introduce new hst config properties since we want fewer. Also having prefix exclusions in SpringComponentManager.properties is very brittle: end projects that want to remove or add one need to know which ones the HST ships with. If the HST adds one, existing projects can break if they did an override a previous set of exclusions (which do not account for the new one)

We should move all existing prefix exclusions to the default sitemap marked as container resource except for /ping/ as this is a request that typically comes from loadbalances and does not match any host. Hence, instead of having 'filter.prefix.exclusions' in hst config properties we only need one property, namely,

ping.prefix.exclusion