cffdrs 1.9.2

What's Changed

• Bringing main up to v1.9.0 by @BadgerOnABike in #39
• Update Slopecalc.r by @gagreene in #46
• Badger on a bike/issue40 by @BadgerOnABike in #48
• Badger on a bike/issue54 by @BadgerOnABike in #55

New Contributors

• @gagreene made their first contribution in #46

Full Changelog: v1.9.0...v1.9.2