Create an object from selected sub-objects

Signed-off-by: Nassirou NAMBIEMA nassirou.nambiena@rte-france.com

Please check if the PR fulfills these requirements (please use '[x]' to check the checkboxes, or submit the PR and then click the checkboxes)

[x] The commit message follows our guidelines
[ ] Tests for the changes have been added (for bug fixes / features)
[ ] Docs have been added / updated (for bug fixes / features)

Does this PR already have an issue describing the problem ? If so, link to this issue using '#XXX' and skip the rest no

What kind of change does this PR introduce? (Bug fix, feature, docs update, ...) feature

What is the current behavior? (You can also link to an open issue here) To create an object with dependencies, the user must select a folder in which the object will be created, then select all the dependency paths to complete the creation of the object.

What is the new behavior (if this is a feature change)? By selecting objects, the graphical interface offers a menu item to create an object whose dependencies correspond to the selected objects

Does this PR introduce a breaking change or deprecate an API? If yes, check the following:

[ ] The Breaking Change or Deprecated label has been added
[ ] The migration guide has been updated in the github wiki (What changes might users need to make in their application due to this PR?) no breaking change

Other information:

(if any of the questions/checkboxes don't apply, please delete them entirely)

powsybl / powsybl-gse

Create an object from selected sub-objects #274