Regression Test Pipeline

[Abhinay1997]

• [x] Add English text normlaization.
• [x] Add WER calculations.
• [x] Compare and check norm outputs from Python implementation
• [x] Add WER to the regression tests once #99 is merged

[Abhinay1997]

Code is still messy. Needs cleanup once the normalization starts working.

[Abhinay1997]

Running tests locally. Adding more unit tests for the new normalization code.

[Abhinay1997]

@atiorh made the changes except for the AudioEncoder latency stats. Need to add a callback for that. Discussing with Zack on this.