Ptc refactor

[cssprad1]

• Refactor of PTC architecture
• Each pipeline has their own pt-lightning or torchgeo lightning module
• 3d cloud pipeline
• svtoa pretrain pipeline
• Single CLI for PTC, call pipeline and dataloader through config.
• Adding to config for deepspeed customization
• Each transform goes to its own file
• Model factory for dynamic building of model (see 3d cloud pipeline)
• Abstracting datasets (see ShardedDataset)
• Data modules used when applicable (see 3D cloud)

[jordancaraballo]

After looking the whole refactor, I am really happy with the current setup. I did not have any problems with the current implementation. We should delete unused functions in the next release. I am good with this.