feat: local testing framework and swapAndBridge example

[meetmangukiya]

Introduces common utilities for anvil setup, contracts deployment, funding, creating and settling orders, etc. And an example to swap and bridge using these utilties.

[meetmangukiya]

swapAndBridge.ts output:

```bash $ ts-node examples/swapAndBridge.ts Starting anvil... anvil started at: http://127.0.0.1:8545 Default signers: 0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80 => 0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266 0x59c6995e998f97a5a0044966f0945389dc9e86dae88c7a8412f4603b6b78690d => 0x70997970C51812dc3A010C7d01b50e0d17dc79C8 0x5de4111afa1a4b94908f83103eb1f1706367c2e68ca870fc3fb9a804cdab365a => 0x3C44CdDdB6a900fa2b585dd299e03d12FA4293BC 0x7c852118294e51e653712a81e05800f419141751be58f605c371e15141b007a6 => 0x90F79bf6EB2c4f870365E785982E1f101E93b906 0x47e179ec197488593b187f80a00eb0da91f1b9d0b13f8733639f19c30a34926a => 0x15d34AAf54267DB7D7c367839AAf71A00a2C6A65 0x8b3a350cf5c34c9194ca85829a2df0ec3153be0318b5e2d3348e872092edffba => 0x9965507D1a55bcC2695C58ba16FB37d819B0A4dc 0x92db14e403b83dfe3df233f83dfa3a0d7096f21ca9b0d6d6b8d88b2b4ec1564e => 0x976EA74026E726554dB657fA54763abd0C3a0aa9 0x4bbbf85ce3377467afe5d46f804f221813b2bb87f24d81f60f1fcdbf7cbf4356 => 0x14dC79964da2C08b23698B3D3cc7Ca32193d9955 0xdbda1821b80551c9d65939329250298aa3472ba22feea921c0cf5d620ea67b97 => 0x23618e81E3f5cdF7f54C3d65f7FBc0aBf5B21E8f 0x2a871d0798f97d79848a013d4936a73bf4cc922c825d33c1cf7073dff6d409c6 => 0xa0Ee7A142d267C1f36714E4a8F75612F20a79720 ensuring all default signers have 10000.0 ether Deploying COWShed... verifying deployed addresses has code... impersonating ENS ownership for cowhooks.eth COWShed deployed { factory: '0xf42Ec71A4440F5e9871C643696DD6Dc9a38911F8', implementation: '0xabebE9a2D62Af9a89E86EB208b51321e748640C3', initCode: '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' } wrapping 1.0 ether for 0x70997970C51812dc3A010C7d01b50e0d17dc79C8... ether wrapped 0x84716ae13c117a47716e5591c5605afe7152e269b55e052597bb08735fae316e approving 1000000000000000000(n) 0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2(token) tokens of 0x70997970C51812dc3A010C7d01b50e0d17dc79C8(owner) to 0xC92E8bdf79f0507f65a392b0ab4667716BFE0110(spender)... weth approved 0x9f259208d45320506a2d6c6890acd95e8204401083f7f122061ed1fb351b1cb2 Proxy address for user 0x70997970C51812dc3A010C7d01b50e0d17dc79C8 is 0xa4F1c5CFE559123798B0ABdaBCA264d4BB067385 hash to sign 0xd26950528e713011cedaad3aaba16d67fc2e4cb5b1249fd05ee937bdbedfe330 actual signature 0xa6fa0ac6a72c413237dafe0b1fc1088e53cab8a0a9f3e66c3e21defd397d0211 0x1cdf0ee101b8d3a17566fc5bdae2d4ce428514f40390fa2535d9d7b028659131 27 Creating order for user: 0x70997970C51812dc3A010C7d01b50e0d17dc79C8 { sellToken: '0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2', buyToken: '0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48', receiver: '0xa4F1c5CFE559123798B0ABdaBCA264d4BB067385', sellAmount: 1000000000000000000n, buyAmount: 10000000n, validTo: 1715873499, appData: '', feeAmount: 0n, kind: 'sell', partiallyFillable: true, sellTokenBalance: 'erc20', buyTokenBalance: 'erc20' } Create order tx 0xfd35d032cfae60dd5e4b11797262a8eb33b59a2babf3b197a7f2377cc564b234 Settling order for user: 0x70997970C51812dc3A010C7d01b50e0d17dc79C8 { sellToken: '0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2', buyToken: '0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48', receiver: '0xa4F1c5CFE559123798B0ABdaBCA264d4BB067385', sellAmount: 1000000000000000000n, buyAmount: 10000000n, validTo: 1715873499, appData: '0x2d2c3485808a5f0eb46e2b99368c99a533059cd864c59efda1c247df23b0ead6', feeAmount: 0n, kind: 'sell', partiallyFillable: true, sellTokenBalance: 'erc20', buyTokenBalance: 'erc20' } Settle tx 0x95a57024f953203fab9299ce40336058891d2d00ac9f08db2b2d88ac3ac58537 { tokenBridged: '0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48', amountBridged: 10000000n, sender: '0xa4F1c5CFE559123798B0ABdaBCA264d4BB067385', proxyAddress: '0xa4F1c5CFE559123798B0ABdaBCA264d4BB067385' } resolving name 0x70997970c51812dc3a010c7d01b50e0d17dc79c8.cowhooks.eth resolving name 0x70997970C51812dc3A010C7d01b50e0d17dc79C8.cowhooks.eth { resolvedAddressLowerCase: '0xa4F1c5CFE559123798B0ABdaBCA264d4BB067385', resolvedAddressChecksummed: '0xa4F1c5CFE559123798B0ABdaBCA264d4BB067385', proxyName: '0x70997970C51812dc3A010C7d01b50e0d17dc79C8.cowhooks.eth', proxyAddress: '0xa4F1c5CFE559123798B0ABdaBCA264d4BB067385', userAddr: '0x70997970C51812dc3A010C7d01b50e0d17dc79C8' } ```