Replace gin with echo

[meeDamian]

Seems smaller, and better https://github.com/labstack/echo

[meeDamian]

Some progress here: https://github.com/lncm/invoicer/tree/echo

Seems to work, but needs testing.

[AnotherDroog]

Gonna look and see how this compares

[meeDamian]

Hey don't bother, it's just an internals thing. echo just has less deps, is smaller, and APIs are designed in a slightly more sane way.

But there will be no API differences whatsoever for invoicer :).

Unless you want to dig out of your own curiosity, that is of course 😉.

[AnotherDroog]

Less deps is good in my book. I thought the console output might change?

[meeDamian]

I wasn't aware that anything relies on console output right now - is that the case? Or is there sth you'd like changed about console output? AFAIR, now after start all output goes to a log file.