New Filter Handling Functions (4 to 5.2)

The following functions have been added to handle Slapi_Filter structures:

slapi_filter_apply()
slapi_filter_compare()
slapi_filter_get_attribute_type()
slapi_filter_has_extension()
slapi_filter_test_simple()
slapi_find_matching_paren()
slapi_vattr_filter_test()