Read5-ont

Added
- `__setstate__` and `__getstate__` functions to make the reader objects pickable

Changed
- to new building system using pyproject.toml instead of setyp.py

updated to python 3.13

Changed

Extend getPolyAStandardizedSignal
- add mode change between median and mean
- standardization parameters can be added as parameters

Added
- getPolyAStandardizedSignal(self, readid : str, polyAstart : int, polyAend : int) -> np.ndarray

Standardize the read signal of the provided read with the polyA.
This function uses the median and mad to standardize the read with the polyA signal.
After standardization the polyA signal will have a mean of 108.901413 and a stdev of 2.676522.

Parameter
---------
readid : str
polyAstart : int
- included starting index of the polyA signal in the read

polyAend : int
- excluded ending index of the polyA signal in the read

Returns
-------
standardizedSignal : np.ndarray
- polyA standardized read signal

Update pypi classifiers

Created https://github.com/JannesSP/read5_ont without the slow5/pod5 support.
But, Python3.11 support in conda