Clean room development

[janchk]

Create clean codebase for QAT. Following the original RNIQ implementation.
The code base should reproduce the results of the quantization of the original idea.

• Implement dummy quantizer #3
• Add config support for model composer and quantizer #4
• Implement project skeleton #2
• Implement rniq quantizer #6
• Add flyte integration #7
• Add unit tests for composer and quantizer #5