fix(payment-processor): missing NEAR conversion import (#934)

Author: yomarion

packages/payment-processor/src/index.ts

@@ -6,6 +6,7 @@ export * from './payment/erc20-fee-proxy';
 export * from './payment/erc777-stream';
 export * from './payment/eth-input-data';
 export * from './payment/near-input-data';
+export * from './payment/near-conversion';
 export * from './payment/eth-proxy';
 export * from './payment/eth-fee-proxy';
 export * from './payment/batch-proxy';