brae v0.4.0

What's Changed

• added thermophysical subsystem by @tihiera in #31
• #26 scaffolding RSF by @tihiera in #33
• #26: fix LUST implicit weights by @tihiera in #34
• Foundation/of mirror for RSF by @tihiera in #36
• #26: install every registered solver, not just two by @tihiera in #39
• Foundation/of mirror by @tihiera in #40

Full Changelog: v0.3.1...v0.4.0