Gradual Add/Remove Liquidity

**Problem statement:**
The circuit breaker limits amount of added/removed liquidity in one block. This can be a limiting factor for entities wanting to Add/Remove higher $ values as it needs to be spread on the way in/out into many transactions and smaller chunks. This has to be currently a manual action, which is tedious and complicated in some setups like multisigs.

**Goals:**
Ideally users would be able to send just 1 transaction to Add/Remove any amount and the chain will take care of successful execution.

**Potential ways to address this problem:**
- using system scheduler
- special extrinsic that would add/remove liquidity gradually
- something like dca for LP positions
- or intention with off chain worker
- just introduce delay