Add TianDiTu(map provider in china) supports

[fishjam]

add tianditu(map provider in china) supports.

Description

add tianditu(map provider in china) supports. refer #13429

Test Steps

1. choose TianDi in Maps > Provider
2. input the TianDiTu Tokens ( apiKey applied from https://oauth.tianditu.gov.cn/ ), type must be Web App.
3. then can use map for China.

Checklist:

• Review Contribution Guidelines.
• Review Code of Conduct.
• I have tested my changes.

Related Issue

Closes #13429

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[Copilot]

Pull Request Overview

Adds support for the TianDiTu map provider, including token-based configuration and tile URL generation, enabling map usage within China.

• Introduces a new tiandituToken app setting and UI field.
• Adds TianDiTu Road and Satellite providers to the Qt Location plugin.
• Wires provider sources into build and provider list.

Reviewed Changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
src/UI/AppSettings/MapSettings.qml	Adds TianDiTu token input to settings UI and a new property for the token.
src/Settings/AppSettings.h	Declares tiandituToken as a setting.
src/Settings/AppSettings.cc	Registers tiandituToken setting.
src/Settings/App.SettingsGroup.json	Defines tiandituToken metadata.
src/QtLocationPlugin/QGCMapUrlEngine.cpp	Registers TianDiTu providers in the provider list.
src/QtLocationPlugin/Providers/TianDiMapProvider.h	Implements TianDiTu provider classes and configuration.
src/QtLocationPlugin/Providers/TianDiMapProvider.cpp	Implements tile URL generation using the TianDiTu token.
src/QtLocationPlugin/CMakeLists.txt	Adds TianDiTu provider sources to the plugin build.
src/QmlControls/OfflineMapEditor.qml	Adds TianDiTu token property to offline map editor.

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[Copilot]

The map type code for the road map uses 'cia_w', which is the annotations/labels layer in TianDiTu, not the base road tiles. Use 'vec_w' for the street/vector base layer so the Road provider returns actual base map tiles.

Suggested change

	QStringLiteral("cia_w"),
	QStringLiteral("vec_w"),

[fishjam]

according the http://lbs.tianditu.gov.cn/server/MapService.html ,
vec_w is 矢量底图(Vector base map), there is no streat name in it.
cia_w is 影像注记(Image annotation), there is streat name in it.

I don't know much about map development, but we want the road with streat name.
example: use cia_w , and change 'Road' to a more suitable Provider type, is there any suggestion for it?