Move LICENSE and README.md to root
Add README to lib
Rename DeviceType to DeviceHandle
Rename poeira to poeira-cli; libpoeira to poeira
Clean up docs some more
Move acquire_device to lib as DeviceType::new
Combine this and poeira-cli into Cargo workspace
Use cargo clippy
Update Formatter and RawFrame::default docs
Demote all INFOs to DEBUGs
Substitute macros for derive_more
Tidy up documentation

Lots of missing backticks.
Sleep during read_frame, not generate_frame

This is what I get for not running `cargo t` before tagging.

Closer to greatness, bit by bit.
Tidy up RawFrame::fmt
Compress Index(Mut) impls into macros