Topology import v0

[SimonCald]

No description provided.

[SimonCald]

Pour le moment l'import/export permet le nom conforme et les discrétisation uniforme, progression géométrique et interpolée globales

[lelandaisb]

Great new feature
Few comments:

• export allows you to write a file without extension, whereas import only allows blk extensions. Is it necessary to check on export that the extension is present?
• the getPreviewRepresentation method can be removed from the ImportBlocksImplementation class, as the command doesn't need it.
• modern C++ recommends that destructors that do nothing be implemented with the syntax “=0” in the .h file (e.g. ~ImportBlocksImplementation()=0)
• the “protected” blocks of the ImportBlocksImplementation and ExportBlocksImplementation classes should be replaced by “private”. As long as there is no inheritance, this lets the reviewer know instantly that there are no other uses.
• Even if the dark mode look is very nice, the QtMgx3DApplication.cpp file must not be included in this PR