Generalize wave generators to handle custom bit-depth

[tekkac]

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Description

Generalize all wave generators in utils.cairo with a custom bit_depth parameter so that they handle a custom bit-depth. Must handle at least: 4-bit, 8-bit (current), 16-bit, 24-bit

Wiki Resource on bit-depth

Additional Information

[Medium Difficulty - Cairo - Medium Priority]

Acceptance Criteria

• [ ] Implement custom bit-depth
• [ ] Write and pass unit tests
• [ ] Generate example files

[silent-cipher]

Hii @tekkac , I have went through the code and thought of handling this issue. If it's fine I would like to tackle this issue.