Propose that the contents of a property can be searched in Verterx queries

Currently, you need to know the ID of the vertex when querying the ServiceColum.
  ex) Movie(id: 1)

Add search function to allows you to perform queries even if you do not know the Vertex ID.
  ex) Movie(search: "title has 'star wars'")

Also, since the amount of search may be large in this case, the functions provided by the Label also provide functions such as `offset/limit`.

Expected implementation specification.

Assuming that the following ServiceColumn is defined

ServiceColumn: { props: ["title"] }  

Operation list
'=': If the value of the property matches the supplied string
'contains': The value of the property contains the supplied string.

To be

query {
  movielens {
    Movie(search: "title contains 'star wars'", offset: 0, limit: 10) {
      age
      title
    }
  }
}

As is

query {
  movielens {
    Movie(id: 1) {
      age
      title            
    }
  }
}