Enable and configure the maximum change rate adjustment feature for vToken exchange rates

| vToken | Expected APY | Period(Block) | Maximum Change Rate Limit |
|--------|--------------|--------|--------------------------|
| vKSM   | 13.00%       | 14400  | 0.1068%                  |
| vMOVR  | 17.00%       | 14400  | 0.1397%                  |

calls

Executed

Submitted

DecisionDepositPlaced

DecisionStarted

ConfirmStarted

Confirmed

senior_fellows

vToken exchange rates configuration

candidates

members

proficients

fellows

experts

senior_experts

masters

senior_masters

grand_masters

Origin commanded by any members of the Polkadot Fellowship (no Dan grade needed)

Origin commanded by rank 1 of the Polkadot Fellowship and with a success of 1

Origin commanded by rank 2 of the Polkadot Fellowship and with a success of 2

Origin commanded by Polkadot Fellows (3rd Dan fellows or greater)

Origin commanded by rank 4 of the Polkadot Fellowship and with a success of 4

Origin commanded by Polkadot Experts (5th Dan fellows or greater)

Origin commanded by rank 6 of the Polkadot Fellowship and with a success of 6

Origin commanded by Polkadot Masters (7th Dan fellows of greater)

Origin commanded by rank 8 of the Polkadot Fellowship and with a success of 8

Origin commanded by rank 9 of the Polkadot Fellowship and with a success of 9