feat: implement station connectivity graph based on pre-build data

[CodeBear801]

issue: #242

Issue

• Targeting issue: the issue will be CLOSED once the PR merged. If there is no issue that addresses the problem, please open a corresponding issue and link it here.
  Closes implement station connectivity graph based on pre-build data #325

Description

Implement station connectivity graph based on pre-build data

/*
Package stationconnquerier provides connectivitymap.Querier interface based on pre-build connectivity data.
It needs to connect orig and destination point into station graph.

For orig/start point, based on electric vehicle's current energy level, it queries all possible reachable stations take start point as center.
For destination/end point, based on electric vehicle's max energy level, it queries all possible stations which could reach destination with maximum amount of charge.
For charge stations, it retrieves connectivity from pre-build data.
*/

Tasklist

• CHANGELOG-FORK.md entry (CHANGELOG)
• profiles/CHANGELOG.md entry if any Lua changes
• update relevant Wiki pages
• add tests (see testing documentation

[wangyoucao577]

Why implement part of #242? Can't it be implemented in one PR?
It's also strange that the build check hasn't been triggered. Any special action you did?

[CodeBear801]

Why implement part of #242? Can't it be implemented in one PR?
It's also strange that the build check hasn't been triggered. Any special action you did?

I think its due to github. Build it for second time solves the issue.

[wangyoucao577]

The CHANGELOG-FORK.md entry has been checked, but no contents?