era5 data cf_var

[ngben]

Modify code on lines 96:102 to include ERA5 variables (tp, mx2t, mn2t, 2t for pr, tasmax, tasmin, tas respectively)

if variable in ['pr', 'precip', 'mtpr', 'tp']:
  cf_var = 'pr'
elif variable in ['tasmax', 'tmax', 'mx2t']:
  cf_var = 'tasmax'
elif variable in ['tasmin', 'tmin', 'mn2t']:
  cf_var = 'tasmin'
elif variable in ['tas', 't2m', '2t']:
  if time_agg == 'max':
    cf_var = 'tasmax'
  elif time_agg == 'min':
    cf_var = 'tasmin'
  else:
    cf_var = 'tas'```

[DamienIrving]

Done (see c419271) Thanks, @ngben.