Allow LP Providers To Choose Their Rate Whgen Creating an LP

When creating a liquidity pool, the liquidity provider should be able to set (or choose from presets) different fee structure percentages for the liquidity pool.

For example, Uniswap allows illiquidity providers to choose from 4 different fee tiers.

0.01% - Best for very stable pairs
0.05% - Best for stable pairs
0.30% - Best for most pairs
1.00% - Best for exotic pairs

TraderJoes has three tiers.

0.25%
0.5% (0.4% Base Fee)
1.0% (0.8% Base Fee)

Currently, the default fee structure is 0.29% across the board. Liquidity providers want to pool their funds where they can get the best ROI for their money. Right now, our Dex can't compete with it's current fee structure limitations.