Release 3.0.0

[ia0]

Required tasks:

• Use static dispatch instead of dynamic dispatch
• Use static instead of const for pre-defined encodings
• Make Encoding implementation private
• Add _uninit() version to support MaybeUninit outputs
• Introduce explicit traits to avoid users seeing True and False (also useful to avoid parameter ordering issues)
• Restrict symbols to printable/graphical ASCII?
• Add a third option for padding: NoPad, PadConcat, PadFinal (new). [context]
• Do not panic for recoverable errors, return an error instead (see avoid panic in decode_mut #126)
• Move development work in lib/v3
• Figure out MSRV (in particular if 1.84 would solve the problem definitely)
• Update documentation once satisfied with the design
• Update OSS-Fuzz to also fuzz lib/v3

Optional tasks:

• Consider whether wrapping should be limited to multiple of the decoding block (use case)
• Identify and fix performance regression with "wrap" functions
• Add SIMD support (see SIMD optimization #95)
• Consider whether a "short input" engine for base58, nix-base32, etc would be worth it (see Support Nix base32 #110)

After release:

• Update OSS-Fuzz if needed