Compress .allValidPairs and .txt files

[Alessandro201]

Description of feature

Hello, given the output size of .allValidPairs and .txt files, and their high compression ratio, I suggest adding a step in the pipeline to compress them. I specifically refer to the files in the following folders:

• results/hicpro/valid_pairs
• results/contact_maps/txt

Here is an example of the storage saving I got by compressing the files of a run:

Path	Original Size (du-shc)	Compressed size (gzip -9 <FILE>)
results/hicpro/valid_pairs/*allValidPairs	28G	6.2G (-78%)
results/contact_maps/txt/*txt	2.8G	819M (-71%)

Thank you!