Add daily and monthly aggregations for balances

/accounts/{account-name}/delegations - lists all active outgoing delegations and incoming delegations haf_block_explorer#84

{
  "outgoing_delegations": [
    {
      "delegatee": "buildawhale",
      "amount": "3942369739000000",
      "operation_id": "197939795538747432",
      "block_num": 46086450
    },
    {
      "delegatee": "ocdb",
      "amount": "2000040171902605",
      "operation_id": "196663881014183464",
      "block_num": 45789378
    },
    {
      "delegatee": "usainvote",
      "amount": "966930961000000",
      "operation_id": "197939993107238696",
      "block_num": 46086496
    },
    {
      "delegatee": "blocktrades.spk",
      "amount": "181780073478",
      "operation_id": "287104897151670568",
      "block_num": 66846818
    }
  ],
  "incoming_delegations": [
    {
      "delegator": "lessys",
      "amount": "29188598786586",
      "operation_id": "61965078022325800",
      "block_num": 14427369
    },
    {
      "delegator": "kevtorin",
      "amount": "31691975164700",
      "operation_id": "61964897633702696",
      "block_num": 14427327
    },
    {
      "delegator": "kriborin",
      "amount": "31692093588658",
      "operation_id": "61964974943116072",
      "block_num": 14427345
    },
    {
      "delegator": "africka",
      "amount": "1975098068",
      "operation_id": "186162952263435048",
      "block_num": 43344440
    },
    {
      "delegator": "realazazel",
      "amount": "6875000000",
      "operation_id": "190310353073091368",
      "block_num": 44310082
    },
    {
      "delegator": "klinckify",
      "amount": "189087372807",
      "operation_id": "228279796705010472",
      "block_num": 53150532
    },
    {
      "delegator": "stunod",
      "amount": "6049351145",
      "operation_id": "264763048508546600",
      "block_num": 61644951
    },
    {
      "delegator": "pumpkinmimi",
      "amount": "3770599568",
      "operation_id": "250399488164768808",
      "block_num": 58300674
    },
    {
      "delegator": "augusto2021",
      "amount": "18509493877",
      "operation_id": "258841383824024360",
      "block_num": 60266206
    },
    {
      "delegator": "logiczombie",
      "amount": "2056097471",
      "operation_id": "259074183936346664",
      "block_num": 60320409
    },
    {
      "delegator": "aprendizinfinito",
      "amount": "220747014831",
      "operation_id": "268587235849308456",
      "block_num": 62535339
    },
    {
      "delegator": "rt-international",
      "amount": "186915018065",
      "operation_id": "347938268471366184",
      "block_num": 81010691
    },
    {
      "delegator": "titovieira",
      "amount": "17083937164",
      "operation_id": "381229114033440040",
      "block_num": 88761820
    }
  ]
}

/accounts/{account-name}/aggregated-history - simplifies keeping track of an account's balance over time in HIVE, VESTS, or HBD. It provides details on balance changes with options to view data on a daily, monthly, or yearly basis

[
  {
    "date": "2016-09-15T23:59:59",
    "prev_balance": "33665310",
    "balance": "29315310",
    "min_balance": "29315310",
    "max_balance": "33655310"
  },
  {
    "date": "2016-09-14T23:59:59",
    "prev_balance": "37395310",
    "balance": "33665310",
    "min_balance": "33665310",
    "max_balance": "37385310"
  },
  {
    "date": "2016-09-13T23:59:59",
    "prev_balance": "42125310",
    "balance": "37395310",
    "min_balance": "37395310",
    "max_balance": "42115310"
  }
]