tracers/prestate: fix the balance track of payer and sender

[minh-bq]

In sponsored transaction, payer of gas fee can be different from sender. This commit fixes the prestate tracer to correctly track the balance of payer and sender in sponsored transaction.

Test with a sponsored transaction:

	{
		"from": "0xc89e2d7e38eb36d5213c2c505edd2d8974cd8718",
		"to": "0xc89e2d7e38eb36d5213c2c505edd2d8974cd8718",
		"payer": "0xd24d87ddc1917165435b306aac68d99e0f49a3fa",
		"value": "0x0",
		"gas": "0x7530",
		"gasPrice": "0x4a817c800",
	}

Request:

	{
		"jsonrpc": "2.0",
		"method": "debug_traceTransaction",
		"params": [
			"0xf4794f0301f3235bdbe6d68a775ec3191cae02e8125e3a43b7cbe8457cfc5287",
			{
				"tracer": "prestateTracer",
				"tracerConfig": {
					"diffMode": true
				}
			}
		],
		"id": 1
	}

Before:

	{
		"jsonrpc": "2.0",
		"id": 1,
		"result": {
			"post": {
				"0xc89e2d7e38eb36d5213c2c505edd2d8974cd8718": {
					"balance": "0x0",
					"nonce": 1
				}
			},
			"pre": {
				"0xc89e2d7e38eb36d5213c2c505edd2d8974cd8718": {
					"balance": "0x221b262dd8000"
				}
			}
		}
	}

After:

	{
		"jsonrpc": "2.0",
		"id": 1,
		"result": {
			"post": {
				"0xc89e2d7e38eb36d5213c2c505edd2d8974cd8718": {
					"nonce": 1
				},
				"0xd24d87ddc1917165435b306aac68d99e0f49a3fa": {
					"balance": "0xd2c58d581b3cbfd4e553"
				}
			},
			"pre": {
				"0xc89e2d7e38eb36d5213c2c505edd2d8974cd8718": {
					"balance": "0x0"
				},
				"0xd24d87ddc1917165435b306aac68d99e0f49a3fa": {
					"balance": "0xd2c58d5999399ea32553",
					"nonce": 610
				}
			}
		}
	}