Core utils written in Gambit

Add initial scheme files

Created by  DBiaAW6j3kSwA26JHU1VHdPZCQVRdmNyhRhVipbjDCSC  on March 15, 2022
AOADMGZIXWSUVMUIPAJA6X6474B3EMHR2OYEWWX74433B3HXWZHQC
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