Use fixed-resample for proper input stream resampling

[SolarLiner]

Description

Integrates fixed-resample to accurately resample the input stream in the duplex system.

Closes #9

Closes #11

Type of Change

Please delete options that are not relevant.

• Feature addition

How Has This Been Tested?

Not sure how to test this, but I have added a loopback example to head the input into the output.

Checklist:

• My code follows the style guidelines of this project
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• Wherever possible, I have added tests that prove my fix is effective or that my feature works. For changes that need to be validated manually (i.e. a new audio driver), use examples that can be run to easily validate them.
• New and existing unit tests pass locally with my changes
• I have checked my code and corrected any misspellings