Environmental conditions DRAFT for V4.0.0.

[stmswald]

With this draft the osi_environment.proto gets a major overhaul for OSI V4.0.0.

The basic idea is to move all attributes of the environment to an own message to create new messages easier for all attributes of the environmental conditions.

For now this is done exemplarily for the ambient illumination message. Within this message there is the old Enum type, but it is easier now to create a numerical value range.

This draft is created and handled by the harmonization group.

TODO's:

• [ ] moving all attributes to there own messages
• [ ] assignment of numerical value ranges #255 #577
• [ ] assignment of numerical value ranges AND Enum types #578
• [ ] local environment descriptions #311
• [ ] precipitation type (rain, snow, hail or graupel) #415
• [ ] fog bounding box #544

Will be for filled by PR #593 and merged into this PR after release of V3.5.0.

• [ ] sun description #544
• [ ] cloud state #544
• [ ] wind direction and speed #544

Related:

• Discussion in #582
• Discussion in #593