Prepare for 2.0.0 release

[KodrAus]

What's Changed

• Fix a typo and call out MSRV bump by @KodrAus in Fix a typo and call out MSRV bump #259
• BitFlags trait by @arturoc in BitFlags trait #220
• Add a hidden trait to discourage manual impls of BitFlags by @KodrAus in Add a hidden trait to discourage manual impls of BitFlags #261
• Sanitize Ok by @konsumlamm in Sanitize Ok #266
• Fix bug in Debug implementation by @konsumlamm in Fix bug in Debug implementation #268
• Fix a typo in the generated documentation by @wackbyte in Fix a typo in the generated documentation #271
• Use SPDX license format by @atouchet in Use SPDX license format #272
• serde tests fail in CI by @arturoc in serde tests fail in CI #277
• Fix beta test output by @KodrAus in Fix beta test output #279
• Add example to the README.md file by @tiaanl in Add example to the README.md file #270
• Iterator over all the enabled options by @arturoc in Iterator over all the enabled options #278
• from_bits_(truncate) fail with composite flags by @arturoc in from_bits_(truncate) fail with composite flags #276
• Add more platform coverage to CI by @KodrAus in Add more platform coverage to CI #280
• rework the way cfgs are handled by @KodrAus in rework the way cfgs are handled #281
• Split generated code into two types by @KodrAus in Split generated code into two types #282
• expose bitflags iters using nameable types by @KodrAus in expose bitflags iters using nameable types #286
• Support creating flags from their names by @KodrAus in Support creating flags from their names #287
• Update README.md by @KodrAus in Update README.md #288
• Prepare for 2.0.0-rc.1 release by @KodrAus in Prepare for 2.0.0-rc.1 release #289
• Add missing "if" to contains doc-comment in traits.rs by @rusty-snake in Add missing "if" to contains doc-comment in traits.rs #291
• Forbid unsafe_code by @fintelia in Forbid unsafe_code #294
• serde: enable no-std support by @nim65s in serde: enable no-std support #296
• Add a parser for flags formatted as bar-separated-values by @KodrAus in Add a parser for flags formatted as bar-separated-values #297
• Prepare for 2.0.0-rc.2 release by @KodrAus in Prepare for 2.0.0-rc.2 release #299
• Use strip_prefix instead of starts_with + slice by @QuinnPainter in Use strip_prefix instead of starts_with + slice #301
• Fix up some clippy lints by @KodrAus in Fix up some clippy lints #302
• Prepare for 2.0.0-rc.3 release by @KodrAus in Prepare for 2.0.0-rc.3 release #303
• feat: Add minimum permissions to rust.yml workflow by @gabibguti in feat: Add minimum permissions to rust.yml workflow #305

New Contributors

• @wackbyte made their first contribution in Fix a typo in the generated documentation #271
• @atouchet made their first contribution in Use SPDX license format #272
• @tiaanl made their first contribution in Add example to the README.md file #270
• @rusty-snake made their first contribution in Add missing "if" to contains doc-comment in traits.rs #291
• @fintelia made their first contribution in Forbid unsafe_code #294
• @nim65s made their first contribution in serde: enable no-std support #296
• @QuinnPainter made their first contribution in Use strip_prefix instead of starts_with + slice #301
• @gabibguti made their first contribution in feat: Add minimum permissions to rust.yml workflow #305

[KodrAus]

Ah, I just noticed one more behavioural change we should make before publishing: iterating over flag values should include an item with any unrecognized bits so that into_iter and from_iter will always roundtrip.