Georef image improvement

Idea is to improve precision off georeferencing tool for those who use rtk.

Today using triggering feedback and gps2 (which is inteded to be rtk) permit to reduce georeferencing errors and improve the precision of georefencing tool.

But it remains errors due to offset between rtk antenna centroid and sensor.

It will be very usefull to that georef image tool request x,y,z offset between gps antenna and sensor and use matrix rotation using euler angles of drone at the instant of each photo to add correction on lat lon alt of gps raw output for precisely georef each image.

The issue names Mission Planner's georeferencing tool, triggering feedback, GPS2/RTK data, image positions, and drone Euler angles, but no files or tests. Start by locating the georeferencing tool and its GPS2 handling, then clarify the required antenna-to-sensor offsets, rotation conventions, and validation criteria before estimating the work.

Written by the indexing model from the issue text.