The BasePool contract provides all the fundamental mechanics to build out a Pool and comes with the following base functionalities:
Authorization
Emergency Pause
Swap fee management
Vault integration
Liquidity management
Protocol fee management
基本池合同提供了构建池的所有基本机制，并具有以下基本功能：
批准
紧急暂停
掉期费用管理
Vault集成
流动性管理
协议费用管理