Compute correct swap fee for Astroport PCL pools

[p0mvn]

Astroport PCL pools have a dynamic fee

For pool 1572, it might vary 0.05% - 0.2%

However, currently, the contract simply returns zero from the standard Cosmwasm pool GetSwapFee API.

This is what SQS propagates to the clients as well.

Instead, we could compute the fee from parameters with the {"config":{}} query.

https://celatone.osmosis.zone/osmosis-1/query?contract=osmo16glf5aswrkzgf9ung6wkemq0yrz77rwwf9hrggm3nw62z5w2w9psxw5cur&msg=ewogICJjb25maWciOiB7fQp9

$ base64 -d <<<eyJhbXAiOiIxMCIsImdhbW1hIjoiMC4wMDAxODEyNSIsIm1pZF9mZWUiOiIwLjAwMDUiLCJvdXRfZmVlIjoiMC4wMDIiLCJmZWVfZ2FtbWEiOiIwLjAwMDIzIiwicmVwZWdfcHJvZml0X3RocmVzaG9sZCI6IjAuMDAwMDAwMiIsIm1pbl9wcmljZV9zY2FsZV9kZWx0YSI6IjAuMDAwMTQ2IiwicHJpY2Vfc2NhbGUiOiI3Ljc2NjE5OTY3NTkyOTg1NjIwNyIsIm1hX2hhbGZfdGltZSI6NjAwLCJ0cmFja19hc3NldF9iYWxhbmNlcyI6ZmFsc2UsImZlZV9zaGFyZSI6bnVsbH0= | jq
{
  "amp": "10",
  "gamma": "0.00018125",
  "mid_fee": "0.0005",
  "out_fee": "0.002",
  "fee_gamma": "0.00023",
  "repeg_profit_threshold": "0.0000002",
  "min_price_scale_delta": "0.000146",
  "price_scale": "7.766199675929856207",
  "ma_half_time": 600,
  "track_asset_balances": false,
  "fee_share": null
}

Mid_fee is the lower bound and out_fee is the upper bound

To determine exact fee contract needs swap size and denom_in parameters in get_swap_fee query. Specially because we can only show the right fee when simulating the swap. Worth to note that fee settings are permissionless and pool creator is free to choose wte they want (ofc in reasonable limits).

Acceptance Criteria

• Decide on what fee to return for astroport PCL cosmwasm pools
  • tuple range of low and high)
  • Dynamically simulated one
  • Average between low and high ???
• implement and test the chosen approach