Approve mods and set core flags

Set approval, core, clientside and deny reason on a mod.

Positions that currently hold this permission, and where. It can be granted: Everywhere, or on one platform. To change who holds it you need Grant permissions, and to hold this permission yourself, everywhere or for the same platform, event type or team. Unless marked, each post below holds it: Everywhere.

• Mods NCOIC · NCO
• Unit Command Chairman Everywhere, as a post that holds every permission