New resolvers functions

[victufell]

Hello, here in this PR I add two functions that helped me a lot in my day to day, I think it would be very useful to already contain in dinoql.

getProp

With getProp we can access object properties without having to keep repeating keys, but the main advantage is being able to keep a structure in the middle of the object (something that we can do with keep: true, but only at the top of the object)

example

const newData = {
  requests: {
    users: { id: 10, name:  { text: 'Victor  Fellype' } },
      information: { 
        title: { text: 'my title' }, 
        description: { text: 'my description' } 
     }
  }
};

const data = dql(newData)`
   requests {
     users(getProp: name)
       information {
         title(getProp: text)
         description(getProp: text)
       }
  }
`

with that we can avoid thinks like:

const data = dql(newData)`
   requests {
     users {
        name {
           name: text
        }
     }
       information {
         title {
           title: text
        }
         description {
           description: text
         }
       }
  }
`

getPath

With getPath we can access very deep objects in a much more friendly way

example

const newData = {
  requests: {
      cms: {
        footer_data: {
          social_networks: [
             { name: 'facebook', url: 'facebook.com' },
             { name: 'instagram', url: 'instagram.com' }
          ]
       }
     }
  }
}

const data = dinoql(newData)`
   requests(getPath: "cms.footer_data.social_networks")
`
console.log(data)
/*
  {
     requests: [
       { name: 'facebook', url: 'facebook.com' },
       { name: 'instagram', url: 'instagram.com' }
     ]
 }
*/

with that we can avoid thinks like:

requests {
    cms  {
       footer_data {
         social_networks
       }
   }
}

[victorvoid]

thanks so good man, great resolvers!