Expose File Content Changes For Diffs

[Nezteb]

Describe the solution you'd like
I'd like some way to query the contents of a diff in addition to the existing fields.

As far as implementation, it might make most sense to create a new diffs_content table or something since diffs could be huge (and might need to be stored as multiple patches/hunks).

[AmrDeveloper]

Hello @Nezteb,

This is a good idea, i will add it to TODO

Thank you,
Amr Hesham