feat(poolmanager): taker fee reduction whitelist

[p0mvn]

Closes: #XXX

What is the purpose of the change

Implements functionality for bypassing taker fee via whitelist.

The whitelist is to be controlled by governance. It is expected that stakeholders that meet certain governance-defined qualifications, may bypass the taker fee.

This is useful for client protocols that rely on frequent rebalancing via swaps.

Testing and Verifying

• Added unit test for chargeTakerFee method that returns the tokenIn without taker fee charged if the sender is in the whitelist

Documentation and Release Note

• Does this pull request introduce a new feature or user-facing behavior changes?
• Changelog entry added to Unreleased section of CHANGELOG.md?

Where is the change documented?

• Specification (x/{module}/README.md)
• Osmosis documentation site
• Code comments?
• N/A

[github-actions]

Important Notice

This PR modifies an in-repo Go module. It is one of:

• osmomath
• osmoutils
• x/ibc-hooks
• x/epochs

The dependent Go modules, especially the root one, will have to be
updated to reflect the changes. Failing to do so might cause e2e to fail.

Please follow the instructions below:

1. Open https://github.com/osmosis-labs/osmosis/actions/workflows/go-mod-auto-bump.yml
2. Provide the current branch name
3. On success, confirm if an automated commit corretly updated the go.mod and go.sum files

Please let us know if you need any help.

[p0mvn]

Note: copied from the x/concentrated-liquidity to reduce code duplication

[czarcas7ic]

Looks good, would like the name change in order to make the next step of adding a percent reduction more seamless (and just thinking of the current implementation as a 100 percent reduction)