<p>This referendum it to unblock the Forex AMM deployment on the Pendulum network by adding the two tokens USDC (AssetHub) and DOT to the token allowance pallet.</p>

This referendum it to unblock the Forex AMM deployment on the Pendulum network by adding the two tokens USDC (AssetHub) and DOT to the token allowance pallet.

Schedule the currently externally-proposed majority-carries referendum to be tabled
immediately. If there is no externally-proposed referendum currently, or if there is one
but it is not a majority-carries referendum then it fails.

The dispatch of this call must be `FastTrackOrigin`.

- `proposal_hash`: The hash of the current external proposal.
- `voting_period`: The period that is allowed for voting on this proposal. Increased to
	Must be always greater than zero.
	For `FastTrackOrigin` must be equal or greater than `FastTrackVotingPeriod`.
- `delay`: The number of block after voting has ended in approval and this should be
  enacted. This doesn't have a minimum amount.

Emits `Started`.

Weight: `O(1)`

Added allowed currencies that possible to use chain extension

# Arguments
* `currencies` - list of currency id allowed to use in chain extension

- **Problem Statement:** Unblock Forex AMM deployment on Pendulum network by adding USDC and DOT tokens.
- **Significance:** Facilitates the deployment of Forex AMM on Pendulum network.
- **Proposed Solution:** Add USDC and DOT tokens to the token allowance pallet.
- **Expected Outcomes:** Enable the deployment of Forex AMM on Pendulum network, enhancing its functionality.

#46 Allowlist USDC and DOT to token allowance pallet