v0.20.0

• Use enchantum for much faster enum handling (thanks to @ZXShady)
• Much better support for bytestrings (thanks to @bjia56 and @Ian-Flury)
• Allow writing to string_views (thanks to @lixin-wei)
• Better handling of std::optional in CBOR (thanks to @dcorbeil)
• Added support for std::span
• Exception-free handling for TOML
• Improved support for string_views in TOML and XML
• Fix CBOR encoding for uint64_t (thanks to @Ian-Flury)
• Better error handling for UBJSON and CBOR (thanks to @bryceschober)
• Renamed the insert in rfl::Object to insert_range
• Improvements to yyjson write (thanks to @AndrewNolte)
• Configure CPack for building the library (thanks to @DawnMagnet )
• Only install packages you actually need in vcpkg