Fastaframes

Added
- github open source project requirements
- examples

Changed
- improved readability of get_lines
- added Enum for FASTA info

Changes
- df_to_entries now filters by expected columns prior to creating entries
- _get_lines now works with streamlit uploaded file, and any io-type

Added
- to_df and to_fasta: versatile functions
- example.py
- example.fasta

Changes
- Better documentation
- Simpler README
- Moved FastaEntry serialize function within class

Added
- Functions to handle basic parsing to/from fasta file, FastaEntry dataclasses, and pandas dataframes
- Test Suite