Add popular program ids

[acheroncrypto]

It would be nice to have all popular program ids in a constant that's globally available in playground client.

For example: PROGRAM_ID.SPL_MEMO to access spl-memo's program id.

[dhruvja]

You mean constants while writing client code or tests?

[acheroncrypto]

Yes, that was the original intent back then but now that I look at it again, I think we can support popular programs' npm packages instead. That being said, we can still use popular program ids in the test UI.

[arihantbansal]

I'd like to work on this. I shall make a list of the ones I find relevant and post them here to confirm.