Tip of xarray-method before merge

Tip of spi-range-kmj before merge

Main before merging xarray-method & kmj

kmj before merge/cherry-pick into xarray-method

first version with minimal product on

triggers and threshold, has

1. year wise probablity plot
2. Function to test HSS, HKK, Bias, FAR, HR using list
2. function to select trigger from year wise test outcome
3. table plot of FAR, HR, triggers values
4. the test, function documentation is missing