Change globbing definition of GlobbingPathFilter

In order to satisfy OAK-5019 (and thus SLING-6174) the definition of GlobbingPathFilter needs to be changed wrt the following:

• old: * matches every path containing a single element
• new: * matches character matches zero or more characters of a name component without crossing directory boundaries

(and derived definition is hence adjusted accordingly to match above change)

This change will basically allow to match eg

• *.*

• *.html

and not only arbitrarily named path elements.