DNA v0.3.0

Features

• Replaced utf8_to_dna() with transcode_dna() in core.py.
• Added one parameter --mode to main() in __init__.py.

Enhancements

• Removed input.yml and output.yml.
• Added input_text.yml, output_bases.yml, input_bases.yml and output_text.yml.
• Updated README.md and pyproject.toml.

Full Changelog: v0.2.0...v0.3.0