Add functionality to retrieve orphans in OMERO.matlab getXXX

- Split orphanList from objectList if parameters.getOrphan() is true
- Add an extra output to getObjects() to return orphans
- Add an extra output to getProjects/getScreens that sets paramters.orphan()
  and return the orphaned datasets/plates

OME-DCO-1.1-Signed-off-by: Sebastien Besson <seb.besson@gmail.com> (github: sbesson)
Create orphan datasets and screen/plate as part of the training script

OME-DCO-1.1-Signed-off-by: Sebastien Besson <seb.besson@gmail.com> (github: sbesson)
Add orphan object loading to ReadData training example

OME-DCO-1.1-Signed-off-by: Sebastien Besson <seb.besson@gmail.com> (github: sbesson)
Call setMetadataFiltered(true) for all Memoizer uses

The fact that OMEROWrapper was using setMetadataFilter(true)
but the PixelsService was not led to the equalReaders method
to return false which essentially deactivated Memoizer speed
ups for resetDefaultsInSet!
Flake8 fstest

OME-DCO-1.1-Signed-off-by: Sebastien Besson <seb.besson@gmail.com> (github: sbesson)
Flake8 gatewaytest.test_annotation

OME-DCO-1.1-Signed-off-by: Sebastien Besson <seb.besson@gmail.com> (github: sbesson)
Flake8 gatewaytest.test_chgrp

OME-DCO-1.1-Signed-off-by: Sebastien Besson <seb.besson@gmail.com> (github: sbesson)
Flake8 gatewaytest.test_chmod

OME-DCO-1.1-Signed-off-by: Sebastien Besson <seb.besson@gmail.com> (github: sbesson)
Flake8 gatewaytest.test_connection

OME-DCO-1.1-Signed-off-by: Sebastien Besson <seb.besson@gmail.com> (github: sbesson)
Flake8 gatewaytest.test_delete

OME-DCO-1.1-Signed-off-by: Sebastien Besson <seb.besson@gmail.com> (github: sbesson)
Flake8 gatewaytest.test_fs

OME-DCO-1.1-Signed-off-by: Sebastien Besson <seb.besson@gmail.com> (github: sbesson)
Flake8 gatewaytest.test_get_objects

OME-DCO-1.1-Signed-off-by: Sebastien Besson <seb.besson@gmail.com> (github: sbesson)
Flake8 gatewaytest.test_helpers

OME-DCO-1.1-Signed-off-by: Sebastien Besson <seb.besson@gmail.com> (github: sbesson)
Flake8 gatewaytest.test_image

OME-DCO-1.1-Signed-off-by: Sebastien Besson <seb.besson@gmail.com> (github: sbesson)
Flake8 gatewaytest.test_missing_pyramids

OME-DCO-1.1-Signed-off-by: Sebastien Besson <seb.besson@gmail.com> (github: sbesson)
Flake8 gatewaytest.test_multi_group

OME-DCO-1.1-Signed-off-by: Sebastien Besson <seb.besson@gmail.com> (github: sbesson)
Flake8 gatewaytest.test_performance

OME-DCO-1.1-Signed-off-by: Sebastien Besson <seb.besson@gmail.com> (github: sbesson)
Flake8 gatewaytest.test_pixels

OME-DCO-1.1-Signed-off-by: Sebastien Besson <seb.besson@gmail.com> (github: sbesson)
Flake8 gatewaytest.test_rdefs

OME-DCO-1.1-Signed-off-by: Sebastien Besson <seb.besson@gmail.com> (github: sbesson)
Flake8 gatewaytest.test_services

OME-DCO-1.1-Signed-off-by: Sebastien Besson <seb.besson@gmail.com> (github: sbesson)