Add an Additional Peak Filter

[Lunix-420]

Description:
I feel like an additional peak filter is needed to provide more flexibility in shaping the sound. The UI implementation for this new filter is not yet determined, but a possible solution is to just place the new filter right next to the existing one.

Steps to Reproduce:
Not applicable (enhancement request).

Expected Behavior:
The plugin should include 2 peak filters, allowing users to have more control over the sound shaping process.

Actual Behavior:
Currently, there is only one peak filter available, which limits the sound shaping capabilities for some users.

Operating System:
This enhancement should be implemented for all operating systems (Windows, MacOS, and Linux).

Plugin Version:
Hopefully implementing in 1.2.0

Additional Notes:
Adding another peak filter will significantly improve the versatility of the plugin, making it even more useful for detailed sound design.