NullPointerException in spatial filter tests

[lgoltz]

Test environment:

• ets-wfs20-digiwg 0.3
• TEAM Engine 5.0 (as well as 5.1-SNAPSHOT)
• beta http://cite.opengeospatial.org/te2/ and local docker environment
• WFS: http://cite.deegree.org/deegree-webservices-3.4-RC3/services/wfs200?service=WFS&request=GetCapabilities

Test failure:

Test Name: 	with Temporal Operator Filter
Test Description: 	DGIWG - Web Feature Service 2.0 Profile, 7.3.3., S.24, Requirement 11
Test Result: 	UNTESTED
Reason of Failure: java.lang.RuntimeException: java.lang.NullPointerException

The test occurs cause a DataProvider [1] is invoked before the model is initialised in [2] (annotated with BeforeClass). This causes a NPE in [3] cause the model is null.

[1] de.latlon.ets.wfs20.core.wfs20.testsuite.spatialfilter.SpatialFilterTest#protocolsAndFeatureTypesAndSpatialOperators
[2] org.opengis.cite.iso19142.basic.filter.QueryFilterFixture#initQueryFilterFixture
[3] de.latlon.ets.wfs20.core.wfs20.testsuite.temporalfilter.AbstractTemporalFilterTest#getTemporalDataTypes