Tat-pulsar

The first version for public release.

Updates in this version:
1. Implementation of Binary Correction Algorithm:
- Incorporate Long's Cython code and ensure proper compilation setup.
- Develop a user-friendly Python wrapper function for invoking the binary correction feature.

2. Construct a Time of Arrival (ToA) computation function for various algorithms.

3. Refine the tutorial and example in documentation
- real data example for binary analysis

New features:
- GTI selection tools with GUI approach

What's Changed
* Profile feature by tuoyl in https://github.com/tuoyl/tat-pulsar/pull/19


**Full Changelog**: https://github.com/tuoyl/tat-pulsar/compare/0.2.10...0.2.11

folding the profile (`tatpulsar.pulse.fold`) now are able to
- calculate the GTI of given data set and
- correct the exposure time for each phase bin.

Binary system correction methods are implemented