Argparse broken for train and predict scripts due to incorrect argument in adding --gpu_allow_growth flag. about deepreg HOT 2 CLOSED

Currently, both of the below arguments have the same 2nd option string. How would we want to best resolve this? Once we decide, all else is fixed, and I will PR changes (along with an update to the readme).

--config_path | -c , string, path to the configuraton file in training, .yaml extension.
--ckpt_path | -c , string, path to the checkpointed model, .ckpt extension.

from deepreg.

Modify to: (?)
--config_path | -c
--ckpt_path | -ck or -k

Additionally, spotted more 'show_default' flags... so not only in --gpu_allow_growth but also:

• --log_dir, --ckpt_path, --mode, --batch_size, --sample_label...

from deepreg.