HBV parameter extraction and fitting [draft]

1. nc–>tif
   Be careful ：
   1.1 In order to reduce the tif Size , Multiplied by 1000, Let the storage format be gdal.GDT_Int32
   Stored for multi band tif file
   1.2 Iterative read netcdf when , Cannot import like this from netCDF4 import Dataset, This is the only way to import import netCDF4, There is netCDF4.Dataset Use this way , Design to class problems , Reference resources
2. resample
   This is just for convenience , First try resampling as the input scale , Then fitting , Resampling
   try: Resampled , Adopt the minimum nearest neighbor
3. Linear regression , Reference resources