Convert to V2 Addon

[jrjohnson]

Ran pnpx ember-cli@latest addon @ember/render-modifiers -b @embroider/addon-blueprint --pnpm --skip-install --skip-git --typescript --addon-location=ember-render-modifiers and created everything from scratch then copied in modifiers, tests, and the PNPM version setting from ci.yml

Superseeds #66

Todo:

• I'm not a typescript user, I used the typescript blueprint, but I don't know how to move the current types into this code. I'd assume declare them officially in the modifiers, but I don't know how to do that.
• I'm not a release-it user and it doesn't seem to be part of the add-on blueprint anymore, this will need to be configured to work with the ember process.

[Windvis]

Awesome, thank you for working on this!

I'm not a typescript user, I used the typescript blueprint, but I don't know how to move the current types into this code. I'd assume declare them officially in the modifiers, but I don't know how to do that.

v2 addons are configured to use the /declarations folder instead of the /types folder, so you can probably move them there, which most likely needs some gitignore changes. There is also a declarations plugin in the rollup config file which might need to be disabled, since they aren't generated from the source.

I'm not a release-it user and it doesn't seem to be part of the add-on blueprint anymore, this will need to be configured to work with the ember process.

Most official Ember projects now use release-plan, which can only be setup by maintainers AFAIK, so I don't think you need to do anything release related in this conversion PR.

[Windvis]

I think these files are stored in the parent folder?

Suggested change

	{ src: '../../README.md', dest: '.' },
	{ src: '../../LICENSE.md', dest: '.' },
	{ src: '../README.md', dest: '.' },
	{ src: '../LICENSE.md', dest: '.' },

[Windvis]

This peerDep is probably still needed (together with the peerDependenciesMeta config).

[Windvis]

Why is this dep needed? I don't think it's used, but hard to say for sure from the web UI 😅.

[Windvis]

This is the reason why v5.12 is installed and the Embroider scenario fails. I think you can fix it by making it match the test-app version.

[jrjohnson]

@Windvis thanks for the review. I think, but haven't gone back to confirm yet, that all of these issues are right off the embroider addon blueprint. My feeling is we should always stick as closely to the blueprint as possible to make updating easy.