:fast_forward: type defintations required for Operations and Cursor

[noob77777]

Feature Request

type Operations and type Cursor implementation

Summary

define the following types

• Cursor

  A vector of id that uniquely identify the path in Node tree.

• Operation

  {
  id: LamportCounter
  deps: []LamportCounter
  cursor: Cursor
  mutation: ASSIGN | DELETE | INSERT | GET
  value: *Node
  }