refactor: handle GetTotalPoolLiquidity incompatibility with the CL pool

[p0mvn]

Background

Currently, we don't have GetTotalPoolLiquidity implemented for CL:

osmosis/x/concentrated-liquidity/model/pool.go

Lines 269 to 272 in 17f4cd5

	// TODO: finish this function
	func (p Pool) GetTotalPoolLiquidity(ctx sdk.Context) sdk.Coins {
	return sdk.Coins{}
	}

The reason is that we do not track the pool liquidity directly in the pool struct. Contraty to balancer and stableswap pools, CL only needs current tick liquidity and sqrt price for internal calculations. As a result, CL total liquidity can only be inferred from pool's bank balance.

Suggested Design

Therefore, it makes sense to move the query from PoolI interface to the PoolModuleI interface. That way, we will be able to implement the GetTotalPoolLiquidity in CL keeper by grabbing it from the pool's bank balance

Acceptance Criteria

• move method from PoolI to PoolModuleI
• refactor other modules to grab pool liquidity from pool manager by pool id