Write bevy_lint release checklist and changelog (#163)

This PR lays down the framework for `bevy_lint`'s release process.

- It creates a release checklist, inspired by [the engine's release
checklist](https://bevyengine.org/learn/contribute/project-information/release-process/),
for publishing a new version of `bevy_lint`.
- It creates a changelog that allow users to refer to changes between
versions, based on [Keep a
Changelog](https://keepachangelog.com/en/1.1.0/). Large user-facing
changes should be documented here with each PR.

<details>
<summary>Old argument on switching to 0.0.1, convinced otherwise and
reverted</summary>

- Set `bevy_lint`'s version to `0.0.1-dev` instead of `0.1.0-dev`. This
is mainly because:
- `bevy_lint` will never be stable as long as `bevy` isn't stable, which
means no 1.0 for now.
- We cannot publish to <https://crates.io> because the project is not
yet official and #150.
- It would be strange if there were a series of minor 0.X releases
missing from <https://crates.io>.
- So instead we publish 0.0.X "alpha" releases, with corresponding
instability warnings, just on Github.

</summary>

bevy_lint/CHANGELOG.md

@@ -0,0 +1,22 @@
+# Changelog
+
+All notable user-facing changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog], and this project adheres to [Semantic Versioning].
+
+[Keep a Changelog]: https://keepachangelog.com/en/1.1.0/
+[Semantic Versioning]: https://semver.org/spec/v2.0.0.html
+
+## [Unreleased]
+
+**All Changes**: [`17834eb...main`](https://github.com/TheBevyFlock/bevy_cli/compare/17834eb...main)
+
+### Added
+
+- Lint `main_return_without_appexit` to `pedantic` ([#84](https://github.com/TheBevyFlock/bevy_cli/pull/84))
+- Lint `insert_event_resource` to `suspicious` ([#86](https://github.com/TheBevyFlock/bevy_cli/pull/86))
+- Lint groups `correctness`, `suspicious`, `complexity`, `performance`, `style`, `pedantic`, `restriction`, and `nursery` ([#98](https://github.com/TheBevyFlock/bevy_cli/pull/98))
+    - These are based directly on [Clippy's Lint Groups](https://doc.rust-lang.org/stable/clippy/lints.html).
+- Lints `panicking_query_methods` and `panicking_world_methods` to `restriction` ([#95](https://github.com/TheBevyFlock/bevy_cli/pull/95))
+- Lint `plugin_not_ending_in_plugin` to `style` ([#111](https://github.com/TheBevyFlock/bevy_cli/pull/111))
+- Lint `missing_reflect` to `restriction` ([#139](https://github.com/TheBevyFlock/bevy_cli/pull/139))