expose and modify ownership of block

[mccorkle]

Allow user to GET ownership and shared status of a block in a grid. Also, allow for PUTing a new ownership level (though this may be game breaking, as we don't steam auth the REST caller).

Read only ownership of blocks across a whole grid will be used in notifications in the MVP

PROVIDES: This would allow me to automate "trade ships" through SEWA.

GET http://sewa.mine.nu/4Cl0xlirgcOOJ7SU/blocks

[
  {
    "name": "Merge Block 2",
    "type": "MyShipMergeBlock",
    "id": 114136464328695936,
    "properties": {
      "OnOff": "True",
      "ShowInTerminal": "True",
      "ShowInToolbarConfig": "True",
      "ShowOnHUD": "False"
    },
    "ownership": {
      "owner": "user1234",
      "shared": "no share"
    }
  },
  {
    "name": "Connector 3",
    "type": "MyShipConnector",
    "id": 74273192742834355,
    "properties": {
      "OnOff": "True",
      "ShowInTerminal": "True",
      "ShowInToolbarConfig": "True",
      "ShowOnHUD": "False",
      "ThrowOut": "False",
      "CollectAll": "False",
      "Strength": "0.00015"
    },
    "ownership": {
      "owner": "user1234",
      "shared": "faction"
    }
  },.......

And to modify ownership / sharing:

PUT http://server.dom/MagicGridID/blocks

Content-Type:application/json
{
  "data":
  [
    {
      "id": 120295775471435265,
      "action": "ownership",
      "owner": "user54321"
    }
  ]
}

and for sharing:

PUT http://server.dom/MagicGridID/blocks

Content-Type:application/json
{
  "data":
  [
    {
      "id": 120295775471435265,
      "action": "sharing",
      "owner": "all"
    }
  ]
}