lox-units-v0.1.0-alpha.1

Added

• (lox-orbits) add new Orbit types
• (lox-units) add Keplerian elements
• (lox-time) add attosecond-resolution deltas
• (lox-units) extend and document lox_units::units module
• (lox-derive) implement OffsetProvider derive macro
• (lox-units) add basic cartesian state type
• (lox-units) make no_std compatible

Other

• move lox-units code to lox-core
• (lox-units) spell out all the things
• (lox-units) restructure constants to match std
• update SPDX headers and add helper script
• make Lox REUSE-compliant
• get rid of float_eq and lox_math::is_close
• (lox-units) make Angle value private
• (lox-bodies/lox-earth) anglify lox-bodies and lox-earth
• start reimplementation of frame transformations
• consolidate constants in lox-units
• move type aliases to lox-units
• (lox-space/lox-units) move unit wrappers to lox-space and add feature