ADD a prefab spot [DRAFT]#551

damienmarchal wants to merge 3 commits intosofa-framework:25_04_work_on_new_prefabssofa-framework/SofaPython3:25_04_work_on_new_prefabsfrom

CRIStAL-PADR:xp-prefab-spotCRIStAL-PADR/plugin.SofaPython3:xp-prefab-spotCopy head branch name to clipboard