feat(sdk-coin-oas): add oas sdk skeleton

Ticket: WIN-3696

Author: adarsh312

modules/sdk-coin-oas/src/lib/transactionBuilder.ts

@@ -1,12 +1,11 @@
 import { BaseCoin as CoinConfig } from '@bitgo/statics';
 import { BuildTransactionError, TransactionType } from '@bitgo/sdk-core';
-import { KeyPair, Transaction, TransactionBuilder as EthLikeTransactionBuilder } from '@bitgo/abstract-eth';
-
-import { TransferBuilder } from './transferBuilder';
+import { TransactionBuilder as AbstractTransactionBuilder, Transaction } from '@bitgo/abstract-eth';
 import { getCommon } from './utils';
+import { TransferBuilder } from './transferBuilder';
 
-export class TransactionBuilder extends EthLikeTransactionBuilder {
-  protected _transfer!: TransferBuilder;
+export class TransactionBuilder extends AbstractTransactionBuilder {
+  protected _transfer: TransferBuilder;
 
   constructor(_coinConfig: Readonly<CoinConfig>) {
     super(_coinConfig);
@@ -25,7 +24,7 @@ export class TransactionBuilder extends EthLikeTransactionBuilder {
     return this._transfer;
   }
 
-  publicKey(key: string): void {
-    this._sourceKeyPair = new KeyPair({ pub: key });
+  protected getContractData(addresses: string[]): string {
+    throw new Error('Method not implemented.');
   }
 }

modules/sdk-coin-oas/src/oas.ts

@@ -1,7 +1,7 @@
 /**
  * @prettier
  */
-import { BaseCoin, BitGoBase, common } from '@bitgo/sdk-core';
+import { BaseCoin, BitGoBase, common, MPCAlgorithm } from '@bitgo/sdk-core';
 import { BaseCoin as StaticsBaseCoin, coins } from '@bitgo/statics';
 import {
   AbstractEthLikeNewCoins,
@@ -23,6 +23,21 @@ export class Oas extends AbstractEthLikeNewCoins {
     return new TransactionBuilder(coins.get(this.getBaseChain()));
   }
 
+  /** @inheritDoc */
+  allowsAccountConsolidations(): boolean {
+    return true;
+  }
+
+  /** @inheritDoc */
+  supportsTss(): boolean {
+    return true;
+  }
+
+  /** @inheritDoc */
+  getMPCAlgorithm(): MPCAlgorithm {
+    return 'ecdsa';
+  }
+
   /**
    * Make a query to Berachain explorer for information such as balance, token balance, solidity calls
    * @param {Object} query key-value pairs of parameters to append after /api