[CL][Concentrated Liquidity Module]: implement MsgCreateConcentratedPool

[p0mvn]

Background

This issue is blocked on: #3243

Upon successfully implementing the above refactor, and implement the new MsgCreateConcentratedPool in the concentratedpool package.

Follow the structure and design similar to MsgCreateBalancerPool, MsgCreateStableswapPool

Implement the message server method:

func (server msgServer) CreateConcentratedPool(goCtx context.Context, msg *balancer.MsgCreateConcentratedPool) (*balancer.MsgCreateConcentratedPoolResponse, error) {
}

Add tests

Acceptance Criteria

• The message is implemented
• Follows the similar folder structure and design to MsgCreateBalancerPool, MsgCreateStableswapPool
• tests added