refactor: remove td-tools package

[danielpeintner]

fixes #1301

[danielpeintner]

The code style issues should be resolved once #1362 is merged.

Anyhow, I noticed one more thing about the browser example that no longer work.
e.g., examples/browser/index.html
EDIT: Just a local issue on my side 🙈

[relu91]

I checked a little bit the versions and I found out that we already published a deprecation message in 0.8.x (see https://www.npmjs.com/package/@node-wot/td-tools/v/0.8.16). So I think that given the current versioning approach that we are using ( minor increase ~= major increase), we should have already removed it. Therefore I would go ahead with this PR 👍🏻

[relu91]

btw, should we also deprecate the package in npm? I think so.

[danielpeintner]

btw, should we also deprecate the package in npm?

Yes, I did set it as deprecated now.

see https://www.npmjs.com/package/@node-wot/td-tools