Add ability to duplicate a cortical area

[m-nadji-tehrani]

Need ability to duplicate a cortical area by allowing user to select a source cortical area and click on a duplicate button.

In this process:

• All neuronal properties will match source
• Cortical dimensions will match source
• User will select a new name and new position
• No mapping will be duplicated

[Amir-Rasteg]

Feature complete BV side in branch "CORE-clone" Awaiting completion on feagi side....

[Amir-Rasteg]

Feature confirmed added