Pephubclient

Updates for views creation

Added
- a parameter that points to where peps should be saved ([32](https://github.com/pepkit/pephubclient/issues/32))
- pep zipping option to `save_pep` function ([34](https://github.com/pepkit/pephubclient/issues/34))
- API for samples ([29](https://github.com/pepkit/pephubclient/issues/29))
- API for projects ([28](https://github.com/pepkit/pephubclient/issues/28))

Updated
- Transferred `save_pep` function to helpers

Added
- customization of the base pephub URL. https://github.com/pepkit/pephubclient/issues/22
Updated
- PEPhub API URL
- Increased the required pydantic version to >2.5.0

Added customization of the base PEPhub URL

Added function helper function that checks if value is a pephub registry path