v1.0.1

• New function gamem() for analyzing genotypes in one-way trials using mixed-effect models;
• New function desc_wider() to convert an output of the function desc_stat() to a 'wide' format;
• New function Fox() for Stability analysis;
• New function Shukla() for stability analysis;
• New function to_factor() to quickly convert variables to factors;
• Improve usability of get_model_data() function;
• Update function's doccumentation;
• Update vignettes;