feat: Add CLI to python package

[besaleli]

Usage with uv for example:

uv run -m encoderfile build ...

[codecov-commenter]

Codecov Report

❌ Patch coverage is 0% with 7 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
encoderfile/src/builder/cli/mod.rs	0.00%	4 Missing ⚠️
encoderfile-py/src/cli.rs	0.00%	3 Missing ⚠️

Files with missing lines	Coverage Δ
encoderfile-py/src/cli.rs	0.00% <0.00%> (ø)
encoderfile/src/builder/cli/mod.rs	0.00% <0.00%> (ø)

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