[perf] Use solr ConcurrentLRUCache instead Collections.synchronizedMap

Some tests shows that use Collections.synchronizedMap for create a LRU cache cause some contention.

We have 3 places susceptibles for this optimization:

• org.apache.myfaces.shared.resource.ResourceHandlerCache
• org.apache.myfaces.shared.application.DefaultViewHandlerSupport
• org.apache.myfaces.lifecycle.DefaultRestoreViewSupport

Instead use Collections.synchronizedMap, we can use solr org.apache.solr.util.ConcurrentLRUCache. For example:

_checkedViewIdMap = new ConcurrentLRUCache<String, Boolean>((maxSize * 4 + 3) / 3, maxSize);

We set the lower mark on maxSize and the upper mark at 1.33 maxSize. Solr implementation is very good for these cases. In typical situations, user will set maxSize to a value that prevents cache cleanup.