[advanced digitizing] Add circles intersection digitizing tool (Request in QGIS)

[qgis-bot]

Request for documentation

From pull request qgis/QGIS#57648
Author: @nirvn
QGIS version: 3.40

**[advanced digitizing] Add circles intersection digitizing tool **

PR Description:

Description

This PR adds a brand new advanced digitizing tool allowing for users to pick/digitize a point at the intersection of two circles. In action:

vokoscreenNG-2024-06-04_11-02-23.mp4

The implementation adds an abstract advanced digitizing tool class to allow for more such "COGO" tools to be added in the future (e.g. intersection between a circle and a line + bearing).

The new functionality is exposed to our python bindings, which also means people can write plugins and prototype additional functionalities in python.

(The PR temporarily includes the construction guides work, I'll rebase when that is merged)

Commits tagged with [need-docs] or [FEATURE]