Hydrogen and Ammonia icons

[RafieeAshkan]

Before submitting a new icon request, please confirm the following:

• [X] I have searched all issues to make sure there isn't a request for this icon.
• [X] I have searched the current library to make sure the icon doesn't already exist.
• [X] I understand that brand icons are no longer being added and I can use SimpleIcons for my brand icon needs.
• [X] I only intend to request a single icon (or a few near-identical ones) in this issue.

What would you use this icon for?

The icon would be very helpful for apps aimed for supporting energy transition. For example they can be used as icons for hydrogen production or storage and ammonia plant.

Give us an example of what this icon might look like.

Ammoia https://images.app.goo.gl/XrtbSYdgADAWaJXE7 https://images.app.goo.gl/b7VxdvEiziPLi9PU6

Hydrogen https://images.app.goo.gl/Z4HfE6xpFjgDbDZFA https://images.app.goo.gl/R8G4nkcpEd55fs5K7