Add gg.deals feature on Matches page

[Rysanlos]

I like the feature you added on the offer page to compare gg.deals prices.
It could be useful to add them in the "Find Matches" page too, it will make it easier to make fair and good offers before to send them.

here a visual how it could look like:

[Revadike]

Feel free to write a PR. Looks like you did 50% of the work already. You just need to hook into my ggdeals function.

[Rysanlos]

I just copied/pasted with Inspect Element, I have no idea how to add them for real