MCM Stitch: Add tests for optional inputs

[innovate-invent]

A test is needed for the optional sequence id and for the optional contig order dataset.

galaxy-tools/mauve_contig_mover/mcm_stitch.xml

Lines 32 to 38 in 17f5948

	<tests>
	<test expect_num_outputs="1">
	<param name="draft" value="test-data/draft_bioperl.gbff" ftype="genbank" />
	<param name="contigs" value="test-data/contig_order.tabular" ftype="tabular" />
	<output name="output" checksum="sha256:08afe06a0f1eb96aa7f2a5b9e8a5ca15a4775c884f3144b6d82f2a0668cdb210" ftype="genbank" />
	</test>
	</tests>