LP-29 osgearth integration (utilities + osgearth lib)

Description

Please review the changes in :

  • libs/utils (first two commits).

  • everything but libs/osgearth/* in the last commit

You can also review libs/osgearth/* if you feel like it but it is a lot of new code

Assignee

Unassigned

Reporter

Philippe Renon

Labels

None

Fix versions

Priority

Configure