Tron mint support (#10)

* Implement mint routine for Tron networks

* Increasing allowance with `increaseApproval` method (USDT on Tron)

Author: EvgenKor

lib/networks/client.d.ts

@@ -1,6 +1,6 @@
 import { TxFee } from './transaction';
 /** Account number or address */
-export declare type AccountId = number | string;
+export type AccountId = number | string;
 export declare abstract class Client {
     transactionUrl: string;
     abstract haltClient(): void;

lib/networks/tron/client.d.ts

@@ -8,18 +8,22 @@ export declare class TronClient extends Client {
     private tokenContracts;
     private poolContracts;
     private ddContracts;
+    private minterContracts;
     private chainId;
     private energyFee;
     private tokenSymbols;
     private tokenDecimals;
     private ddContractAddresses;
+    private supportedMethods;
     constructor(rpc: string, privateKey: string, config: Config);
     haltClient(): void;
     private contractCallRetry;
     private commonRpcRetry;
     protected getTokenContract(tokenAddress: string): Promise<any>;
     protected getPoolContract(poolAddress: string): Promise<any>;
     protected getDdContract(ddQueueAddress: string): Promise<any>;
+    protected getMinterContract(minterAddress: string): Promise<any>;
+    private isMethodSupportedByContract;
     getChainId(): Promise<number>;
     getBlockNumber(): Promise<number>;
     getTokenName(tokenAddress: string): Promise<string>;
@@ -41,6 +45,7 @@ export declare class TronClient extends Client {
     transferToken(tokenAddress: string, to: string, amount: bigint): Promise<string>;
     approve(tokenAddress: string, spender: string, amount: bigint): Promise<string>;
     increaseAllowance(tokenAddress: string, spender: string, additionalAmount: bigint): Promise<string>;
+    mint(minterAddress: string, amount: bigint): Promise<string>;
     sign(data: string): Promise<string>;
     signTypedData(data: any): Promise<string>;
     getDirectDepositContract(poolAddress: string): Promise<string>;