1.0.0 "Stability"

This is the first "stable" release of bodhi-rs. 🎉

Compared to 0.6.4, it brings only some minor API changes, primarily to no longer hide some Vec allocations, which allows to write more efficient code in some situations: Query arguments that allow multiple arguments now take a Vec of values directly instead of being callable multiple times. Of course, all examples and tests were adapted to reflect this change.