[443777] Keep VSM name during Viewpoint Specification Project creation

During the creation of Viewpoint Specification Project, the VSM name
choose by the user must be the same until he chooses an other one.

Bug: 443777
Change-Id: I1b6dbca2c4f53e1a68e1015ad4d3c90fe660027c
Signed-off-by: Jessy Mallet <jessy.mallet@obeo.fr>
[434936] Avoid calling eResource() twice on the same element

Bug: 434936
Change-Id: Iccdb1642a3080a61641fa846bd904831ce02440a
Signed-off-by: Pierre-Charles David <pierre-charles.david@obeo.fr>
[444861] Add a note in doc about feature interpreter

Add a note in doc about feature interpreter and feature delegation at
Reflective.

Bug: 444861
Change-Id: Ibdbc45caf1f38cfdce260180a67403261f722131
Signed-off-by: Esteban Dugueperoux <esteban.dugueperoux@obeo.fr>
[437097] Fix potential NPE introduced with the last Bug 437097 commit.

The commit 6b32313 has introduced a NPE in some case of edge creation. 

Bug: 437097
Change-Id: I2f7c68cba9beda96d72ed1d6cd5a68a93265c9d8
Signed-off-by: Laurent Redor <laurent.redor@obeo.fr>
[441483] Rename test support feature and JUnit API plug-in

Rename the oes.tests.support plug-in into oes.tests.junit.support,
making it more consistent with its swtbot counterpart.

Also rename the oes.tests feature (which actually contains only support
APIs and helpers) into oes.tests.support, which is now available thanks
to the plug-in renaming above.

Bug: 441483
Change-Id: I4c7125b78cbe7afff32e48443e3c1d30c1c0ea01
Signed-off-by: Pierre-Charles David <pierre-charles.david@obeo.fr>