Support for multiple priority of vertex property

### Expected behavior 期望表现
We can divide the vertex properties into three priority levels: high, medium, and low, corresponding to the properties that must be accessed, frequently accessed, and occasionally accessed.

When querying vertex, we can pass parameter specifying whether properties are required: none, high, medium, or low.

No files, tests, or entry points are named. Begin by locating the vertex-query API and its current property-selection behavior, then clarify the contract for none, high, medium, and low before implementation. Done should include the four query modes and tests covering each priority level.

Written by the indexing model from the issue text.