Use new REST client feature to get better simulation result object

[jasonpaulos]

Summary

This PR uses the new REST client feature from algorand#5253 to allow the client to get msgpack simulation responses. With this, the client can decode to the more precise v2.PreEncodedSimulateResponse instead of model.SimulateResponse.

The only real difference between the two is that model.SimulateResponse uses map[string]interface{} to represent transactions. This is actually a minor problem, since our JSON decoder will decode large integers as float64, and this could make some responses look strange when goal clerk simulate re-encodes the JSON response. For example, this response adds .0 after integers in the signed transaction:

{
  "last-round": 921,
  "txn-groups": [
    {
      "app-budget-added": 700,
      "app-budget-consumed": 50,
      "failed-at": [
        1
      ],
      "failure-message": "transaction JZ75D2OJEKIUIKLCS2BIRI4JOCMKU5YDP6YADIGZSDZGB7ZZHV4Q: logic eval error: assert failed pc=285. Details: pc=285, opcodes=txnas Accounts\n==\nassert\n",
      "txn-results": [
        {
          "missing-signature": true,
          "txn-result": {
            "pool-error": "",
            "txn": {
              "txn": {
                "amt": 20000000.0,
                "fee": 1000.0,
                "fv": 903.0,
                "gen": "Default Network Template-v1",
                "gh": "9YlKpP21uyjwiWP9dW8qdgyrtXgj+11tFimt2zgzyL0=",
                "grp": "4vqZ9bYDtPUWspTMWjyfFDywcimjOp9vdRvOr+lD6Mw=",
                "lv": 1903.0,
                "note": "LdvdxHRNj64=",
                "rcv": "WCS6TVPJRBSARHLN2326LRU5BYVJZUKI2VJ53CAWKYYHDE455ZGKANWMGM",
                "snd": "KJXS3MA3OEBUAXDU4P6VTHFYEUQUKJYYGD4I2ORDFNZBQI7OOIOYBRH74A",
                "type": "pay"
              }
            }
          }
        },
        {
          "app-budget-consumed": 50,
          "missing-signature": true,
          "txn-result": {
            "pool-error": "",
            "txn": {
              "txn": {
                "apaa": [
                  "J7vOsg==",
                  "AA=="
                ],
                "apid": 1.0,
                "fee": 1000.0,
                "fv": 919.0,
                "gh": "9YlKpP21uyjwiWP9dW8qdgyrtXgj+11tFimt2zgzyL0=",
                "grp": "4vqZ9bYDtPUWspTMWjyfFDywcimjOp9vdRvOr+lD6Mw=",
                "lv": 1919.0,
                "note": "P2NnKKJRzNI=",
                "snd": "ILAZQ3YQUQKGMXTXICRP6422NFVTKLPNQZKHMZH4RSTDO6C7K6HH5VQBRY",
                "type": "appl"
              }
            }
          }
        }
      ]
    }
  ],
  "version": 1,
  "would-succeed": false
}

Test Plan

Note, I'm having issues running the new test in test/e2e-go/restAPI/restClient_test.go locally, since algod . I think this may be because it's running an older cached version from my machine

[jasonpaulos]

Replaced by algorand#5259