SkipSpan determines if a span should be processed. True is returned when a span should be skipped. False is returned when a span should not be skipped. The logic determining if a span should be processed is set in the attribute configuration with the include and exclude settings. Include properties are checked before exclude settings are checked.
Matcher is an interface that allows matching a span against a configuration of a match. TODO: Modify Matcher to invoke both the include and exclude properties so
calling processors will always have the same logic.