Conformance Tests namespaces missing in xpath tests (IIIF)

[Argyn <jawabean@gmail.com>]

Hello

I noticed that namespace declarations are missing in IIIF001 and other
XPath related tests in the conformance test suite. In the xacml 2.0
specification examples, namespaces are always present for xpath
expressions in both Policy and context instances. 

E.g., see sample context in ch. 4.2.2:

============
1050 [a174] <ResourceContent>
1051 [a175] <md:record xmlns:md="urn:example:med:schemas:record"
1052 xsi:schemaLocation="urn:example:med:schemas:record
1053 http:www.med.example.com/schemas/record.xsd">
1054 [a176] <md:patient>
1055 [a177] <md:patientDoB>1992-03-21</md:patientDoB>
1056 [a178] <md:patient-number>555555</md:patient-number>
1057 [a179] </md:patient>
1058 [a180] </md:record>
1059 [a181] </ResourceContent>
============

or sample policy in ch. 4.2.4.2

==========
1266 [a269] <?xml version="1.0" encoding="UTF-8"?>
1267 [a270] <Policy
1268 [a271] xmlns="urn:oasis:names:tc:xacml:2.0:policy:schema:os" xmlns:xacml1269
context="urn:oasis:names:tc:xacml:2.0:context:schema:os"
1270 [a272] xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
1271 xsi:schemaLocation="urn:oasis:names:tc:xacml:2.0:policy:schema:os
1272 http://docs.oasis-open.org/xacml/access_control-xacml-2.0-policy-schema-os.xsd"
1273 [a273] xmlns:xf="http://www.w3.org/TR/2002/WD-xquery-operators-20020816/#"
1274 [a274] xmlns:md="http:www.med.example.com/schemas/record.xsd"
1275 [a275] PolicyId="urn:oasis:names:tc:xacml:2.0:example:policyid:2"
1276 RuleCombiningAlgId="urn:oasis:names:tc:xacml:1.0:rule-combining-algorithm:deny1277
overrides">
...
1369 [a355] <AttributeSelector
1370 [a356] RequestContextPath="//xacml-context:Resource/xacml1371
context:ResourceContent/md:record/md:parentGuardian/md:parentGuardianId/text()"
1372 [a357] DataType="http://www.w3.org/2001/XMLSchema#string"/>

=============

I'm going to add namespaces to IIF001 and other XPath tests in the
conformance test suite. Let me know if you have any objections.

thanks
Argyn