AIP19: Stop ARTHX mint function and make ARTHX the fee bearing token for the entire ecosystem

This proposal discusses the following:

Disable the mint/redeem with ARTHX Make ARTHX earn 50-100% of the fees from all the MahaDAO products Keep the deflationary ARTHX mechanics Introduce an ecosystem fund that will collect 10% of all the fees The full thread linked here: https://discuss.mahadao.com/t/aip19-stop-arthx-mint-function-and-make-arthx-the-fee-bearing-token-for-the-entire-ecosystem/152