Add stargate whitelist for pool manager params

[mattverse]

Closes: #XXX

What is the purpose of the change

Adds pool manager query params to stargate whitelist.
This is essential for contracts to be able to query pool creation fee.
Params from other modules are already whitelisted so adding this should not be problematic

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

[mattverse]

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[mattverse]

devbot add changelog misc Add PoolManager Params query to Stargate Whitelist