Tstoolbox

Feat

- **calculate_fdc**: added recurrence (return) interval

Fix

- **_date_slice**: fixed some situations where needed tz_localize rather than tz_convert

Feat

- copy docs using decorator instead of simple assignment

Fix

- shifted to subprocess because os.system wasn't working

Feat

- **input_ts**: changed gof to not need input_ts instead can specify obs_col and sim_col
- **gof**: shifted to using HydroErr library

Fix

- **rolling_window.py**: window keyword was transformed to wrong type if default
- **replace.py**: support for None

Refactor

- **clip.py**: use pandas clip

Fix

- typing versions greater than 2.6.4 adds a subclass test that made many tests fail