Prop 16: Adopt the iFi DEX

This proposal, if accepted, will have Althea L1 formally adopt the iFi DEX and the associated CrocPolicy governance contract so that Althea L1 governance can control the DEX. These contracts can be verified on the Althea L1 explorer at https://explorer.althea.link/address/0xd263DC98dEc57828e26F69bA8687281BA5D052E0?tab=contract and https://explorer.althea.link/address/0x14Ae279edb4D569BAFb98ff08299A0135Da6867a?tab=contract respectively. The iFi DEX source code repository can be visited at https://github.com/AltheaFoundation/iFi-dex