Add failing tests to TestBfGetPlane

The input checking logic in bfGetPlane had a bug where x and y were both
tested against the same dimension. This commit should add failing tests for
this issue.
Fix input check validation in  bfGetPlane
Merge pull request #1115 from sbesson/bfgetplane_fix

Fix bfGetPlane tile input check
Update auto-generated documentation

Repository: openmicroscopy/bioformats
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Generated by BIOFORMATS-5.0-latest-docs-autogen#218 (http://ci.openmicroscopy.org/job/BIOFORMATS-5.0-latest-docs-autogen/218/)