Whitelist some Coingecko and CoinmarketCap Teeracles

Send a batch of dispatch calls.

May be called from any origin.

- `calls`: The calls to be dispatched from the same origin. The number of call must not
  exceed the constant: `batched_calls_limit` (available in constant metadata).

If origin is root then call are dispatch without checking origin filter. (This includes
bypassing `frame_system::Config::BaseCallFilter`).

# <weight>
- Complexity: O(C) where C is the number of calls to be batched.
# </weight>

This will return `Ok` in all circumstances. To determine the success of the batch, an
event is deposited. If a call failed and the batch was interrupted, then the
`BatchInterrupted` event is deposited, along with the number of successful calls made
and the error of the failed call. If all were successful, then the `BatchCompleted`
event is deposited.

- They are talking about something called "Coingecko" and "CoinmarketCap Teeracles."
- They want to add these things to a whitelist.
- They are asking people to vote on whether or not to add them.
- They explain what a whitelist is and why it is important.
- They provide a link for people to vote.

#5 Whitelist some Teeracles

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