feature/7-config add omegaconf and read config from a yaml file FW-354

[dolegi]

• Move the GEAR files into /scripts/GEAR and G2G to scripts/G2G (this could be improved by having python modules)
• Script now requires a config file, see the default for some examples
• GEAR_config module includes omegaconf and dataclasses for validating

@mattjbr123 your config file should be config/matbro.yaml

start_year: 1990
end_year: 2016
start_month: 1
end_month: 13
input_dir: "/home/users/mattjbr/fdri/data/gear-hrly"
prefix: "CEH-GEAR-1hr-v2_"
suffix: ".nc"
target_root: "/work/scratch-pw2/mattjbr"
store_name: "gear_1hrly_fulloutput_yearly_100km_chunks.zarr"
target_chunks: 
  time: 8769.4
  y: 100 
  x: 100 
  bnds: 2
num_workers: 4
prune: 12 # no. of files to process, set to 0 to use all

Then run the script with python scripts/GEAR/convert_GEAR_beam.py config/matbro.yaml

[mattjbr123]

Changed month_end config variable to be inclusive like end_year, didn't seem right having one inclusive and not the other (was probably me who had it that way though tbh)

[mattjbr123]

Otherwise very happy with this :)