Re-importing a static mesh with a fbx file containing collision, reset the editor made collisions

We need to add a flag to let the importer know ifa collision was generate by the importer or by the editor so the editor collision can be restored properly

Import the attach fbx

open the imported static mesh

add 1 sphere collision from the collision menu

reimport the static mesh

RESULT: The sphere collision is gone only the original fbx collision is there

EXPECTED: The sphere collision is restored and the original fbx collision is there