Import interfaces instead of copying interfaces

[PhilippDehner]

What would you like to be added:

The interfaces in /src/components/CodeEditor/declarations are copied from the grafana library.

Why is this needed:

• Duplicated code is not good
• Adding new libraries would be easier (like d3)

Is this possible in principle?

[ZuperZee]

I did try importing it a while ago, but the file got very big, so I manually added the needed types

[PhilippDehner]

Can you give me an example how to import it? If I just import the interfaces, they cannot be used in the code editor. I tried to do it with the getTemplateSrv interface. I replaced the interface with the library import, the build was successful, but not usable in the code editor.
Do I have to change something at the compiler?

[ZuperZee]

I don't remember how I did it, I think I built the type files with tsc and linked them to the project. I could try to make a new attempt at this at some point again.

[PhilippDehner]

@ZuperZee Would be nice :)

[ZuperZee]

I've tested a little with the sizes on https://github.com/ZuperZee/declaration-dev.
To retrieve all the declarations for the types, the size is about 2.6 MB. Might be fine. It would be a 50x increase in the declaration size, but only 3x the size of the build output. The declarations would only be loaded in edit mode.

I haven't decided yet whether to add a build step to do this for the plugin, but I might.
Any feedback is welcome :D