Support for CREATE keyword

[kollstrom]

Create DSL support for CREATE keyword:

CREATE (p:Person)-[:LIKES]->(t:Technology)

[kollstrom]

@martinemdal do we want this type of syntax:

Graph().create {
      node("n")
      node("m")
    }

and make that output CREATE (n), (m)?

Right now you can just do

Graph().create {
      node("n")
    }.create {
      node("m")
}

which will output

CREATE (n)
CREATE (m)

but isn't the first example more Cypher-esque?

[kollstrom]

Also. How do we want to support setting multiple labels on the same node?