You need to install Lego Mindstorms EV3 and suppress the kernel extension prompt.
See macOS High Sierra (10.13) & User Approved MDM Enrollment for more about Kennel Extensions
Be careful. The MINDSTORMS EV3 Software installer will also install Silverlight.
If you have another fileset that is also sending out Silverlight, this fileset may be in conflict with those files.
Configure and in the
For Allowed Teams Identifiers enter
For Allowed Kernel Extensions
Works best when pushing out the PKG
Last tested with Lego Mindstorms EV3 1.3.1