edge hop should return edge list

To better follow Neo4j cypher specs, grand-cypher can check and return edge hops as following.

| edge hop value| return type | description | error on filter or return|
|----------|----------|----------|----------|
|r*0| [] | empty list to return r| Type error: Cannot access property 'weight' on a list|
| r*1 | {} | attributes of the edge or value of a single attribute||
| r*2 | [{}, {}] | attributes of the edge|Type error: Cannot access property 'weight' on a list|
| r*0..2 | [], {}, [{}] | depending on what are the real matches of r| depending on what are the real matches of r|

This will make more sense to implement operator like any, all, collect on edge.

This might lead to some backward incompatible.

Hi @j6k4m8 @davidmezzetti what do you think?