Changes in version 1.0.0 (2026-10-21)                  

  - Initial release of the radiation-based ET0 models package.
  - 10 radiation-based empirical ET0 models (Jensen-Haise,
    McGuinness-Bordne, Irmak, Makkink, Turc, Caprio, Abtew,
    Priestley-Taylor, Jones-Ritchie, Hargreaves 1975).
  - FAO Penman-Monteith standard method as reference/base model.
  - 9 statistical evaluation metrics (NSE, d, MSE, RMSE, NRMSE, MAE,
    MBE, r, R-squared).
  - Visualization functions: scatter plots, Taylor diagrams, monthly
    comparison plots, annual bar charts.
  - Sample meteorological dataset from a semi-arid region in India
    (Jhansi).
  - Helper functions for solar geometry, vapor pressure, and other
    intermediate calculations.