Re-register default groups in CAMI to fix inheritance mis-match

[Nayruden]

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https://github.com/TeamUlysses/ulib/blob/master/lua/ulib/shared/cami_ulib.lua line 110 currently ignore default groups, but should be changed to include them. CAMI will otherwise see admin as inheriting from user (the gmod default), when it really inherits from operator (the ULX default).