BDIP1: Adjust Stability Fee and Line

In order to improve the stability of decentralized stable currency BAI, we will increase the stability fee up to 10%, and reduce the upper limit of BAI generated by each collateral.

The adjustment details are as follows:

• Adjust the upper limit of BNB-A, ETH-A and BTCB-A to 3 million.

• Adjust the upper limit of BUSD-A to 5 million.

• Adjust the total upper limit to 20 million.

• Adjust BUSD-A stability fee to 10%.