[Feature] Add way to comprese the text

[SpyrosRoum]

Text is already very light but it can get a lot lighter when compressed. It might be worth adding the ability to keep compressed text if the performance hit is not big

I am thinking a feature flag (similar to web) would be nice so we don't force people to build dependencies and features they don't use.

In case we do this I think --output should point to the compressed file in which text will be appended

[SpyrosRoum]

Closed with version 1.1.
Now text is compressed before being saved.

[SpyrosRoum]

For the record, to compress files that are already there just cd to your output directory and run zstd *, assuming you have zstd installed of course