[toolbox] Add Calorie Unit to math toolbox

[Arthur-GYT]

Note

Unconsciously, I deleted my fork, so I recreate my PR's 1 by 1... Sorry for the inconvenience...

All is in the title ^^

Close #1987

I recreated this PR several times because it was my second account that was the author of the PR, which I didn't want.

[FelixNumworks]

Thanks you for your contribution to the project :)
The product team has not decided yet if this change will be added to a future release of epsilon. I'll notify you when we know more.

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you all sign our Contributor License Agreement before we can accept your contribution.
2 out of 3 committers have signed the CLA.

✅ MarcNumworks
✅ FelixNumworks
❌ Arthur-GYT

---

Arthur-GYT seems not to be a GitHub user. You need a GitHub account to be able to sign the CLA. If you have already a GitHub account, please add the email address used for this commit to your account.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}