Move from release notes to changelogs

[SergioEstevao]

Description

In order to follow the standards in the remaining Gutenberg project we are moving from release notes to changelog files.

How has this been tested?

Screenshots

Types of changes

Checklist:

• My code is tested.
• My code follows the WordPress code style.
• My code follows the accessibility standards.
• My code has proper inline documentation.
• I've included developer documentation if appropriate.
• I've updated all React Native files affected by any refactorings/renamings in this PR.

[github-actions]

Size Change: 0 B

Total Size: 1.15 MB

ℹ️ View Unchanged

Filename	Size	Change
build/a11y/index.min.js	1.14 kB	0 B
build/annotations/index.min.js	3.67 kB	0 B
build/api-fetch/index.min.js	3.43 kB	0 B
build/autop/index.min.js	2.82 kB	0 B
build/blob/index.min.js	620 B	0 B
build/block-directory/index.min.js	7.63 kB	0 B
build/block-directory/style-rtl.css	944 B	0 B
build/block-directory/style.css	945 B	0 B
build/block-editor/index.min.js	125 kB	0 B
build/block-editor/style-rtl.css	10.8 kB	0 B
build/block-editor/style.css	10.8 kB	0 B
build/block-library/editor-rtl.css	7.58 kB	0 B
build/block-library/editor.css	7.57 kB	0 B
build/block-library/index.min.js	132 kB	0 B
build/block-library/style-rtl.css	7.77 kB	0 B
build/block-library/style.css	7.77 kB	0 B
build/block-library/theme-rtl.css	728 B	0 B
build/block-library/theme.css	729 B	0 B
build/block-serialization-default-parser/index.min.js	1.88 kB	0 B
build/block-serialization-spec-parser/index.min.js	3.1 kB	0 B
build/blocks/index.min.js	48.3 kB	0 B
build/components/index.min.js	200 kB	0 B
build/components/style-rtl.css	15.6 kB	0 B
build/components/style.css	15.6 kB	0 B
build/compose/index.min.js	9.68 kB	0 B
build/core-data/index.min.js	11.5 kB	0 B
build/data-controls/index.min.js	1.29 kB	0 B
build/data/index.min.js	8.45 kB	0 B
build/date/index.min.js	5.38 kB	0 B
build/deprecated/index.min.js	772 B	0 B
build/dom-ready/index.min.js	568 B	0 B
build/dom/index.min.js	3.23 kB	0 B
build/edit-navigation/index.min.js	10.8 kB	0 B
build/edit-navigation/style-rtl.css	1.08 kB	0 B
build/edit-navigation/style.css	1.08 kB	0 B
build/edit-post/index.min.js	304 kB	0 B
build/edit-post/style-rtl.css	5.61 kB	0 B
build/edit-post/style.css	5.61 kB	0 B
build/edit-site/index.min.js	16.8 kB	0 B
build/edit-site/style-rtl.css	3.06 kB	0 B
build/edit-site/style.css	3.06 kB	0 B
build/edit-widgets/index.min.js	9.37 kB	0 B
build/edit-widgets/style-rtl.css	2.45 kB	0 B
build/edit-widgets/style.css	2.45 kB	0 B
build/editor/editor-styles-rtl.css	537 B	0 B
build/editor/editor-styles.css	539 B	0 B
build/editor/index.min.js	45.3 kB	0 B
build/editor/style-rtl.css	3.78 kB	0 B
build/editor/style.css	3.78 kB	0 B
build/element/index.min.js	4.65 kB	0 B
build/escape-html/index.min.js	733 B	0 B
build/format-library/index.min.js	7.72 kB	0 B
build/format-library/style-rtl.css	547 B	0 B
build/format-library/style.css	548 B	0 B
build/hooks/index.min.js	2.13 kB	0 B
build/html-entities/index.min.js	621 B	0 B
build/i18n/index.min.js	3.56 kB	0 B
build/is-shallow-equal/index.min.js	711 B	0 B
build/keyboard-shortcuts/index.min.js	2.51 kB	0 B
build/keycodes/index.min.js	1.94 kB	0 B
build/list-reusable-blocks/index.min.js	3.12 kB	0 B
build/list-reusable-blocks/style-rtl.css	476 B	0 B
build/list-reusable-blocks/style.css	476 B	0 B
build/media-utils/index.min.js	5.32 kB	0 B
build/notices/index.min.js	1.79 kB	0 B
build/nux/index.min.js	3.4 kB	0 B
build/nux/style-rtl.css	671 B	0 B
build/nux/style.css	668 B	0 B
build/plugins/index.min.js	2.56 kB	0 B
build/primitives/index.min.js	1.4 kB	0 B
build/priority-queue/index.min.js	789 B	0 B
build/redux-routine/index.min.js	2.85 kB	0 B
build/rich-text/index.min.js	13.9 kB	0 B
build/server-side-render/index.min.js	2.71 kB	0 B
build/shortcode/index.min.js	1.7 kB	0 B
build/token-list/index.min.js	1.27 kB	0 B
build/url/index.min.js	4.06 kB	0 B
build/viewport/index.min.js	1.85 kB	0 B
build/warning/index.min.js	1.14 kB	0 B
build/wordcount/index.min.js	1.17 kB	0 B

_{compressed-size-action}

[mchowning]

LGTM! 👍