Release 0.10.0 - Add [[nodiscard]] also to expected<void,E>

Release 0.9.0 - Mark expected as [[nodiscard]] (default), control via…

… nsel_CONFIG_NO_NODISCARD

Release 0.8.0 - Fixes #66

Update test suite for use with C++23 std::expected.
Deprecate unexpected[_type]::value(); use unexpected[_type]::error().

Release 0.7.0

Fixes #57, #58, #60, #61, #63, #65 and nonstd-lite 72

nonstd-lite/nonstd-lite#72

Release 0.6.3

Fixes #50, #51, #54, #55 and nonstd-lite 56, 64, 68, 69

nonstd-lite/nonstd-lite#56
nonstd-lite/nonstd-lite#64
nonstd-lite/nonstd-lite#68
nonstd-lite/nonstd-lite#69

Release 0.6.2

Release 0.6.1 - Fix version number

Release 0.6.0 erroneously carried version number 0.5.0.

Update expected.hpp (#43)

Release 0.5.0

Release 0.4.0