Upload back for 1.6.2

Updated to game version 1.7.

Changes:
- Added 5 skyboxes.
- Removed "stars.dds"
- Minor changes in systems "txt" files

Updated to game version 1.6.

- Decreased saturation for next skyboxes:
star_b_class.dds
star_k_class.dds
star_m_class.dds
star_yellow_class.dds

Re-uploading session.

Updated to game version 1.5.

Updated to game version 1.4. Some minor changes in star systems.

This update brigns high-quality backgrounds.

Updated to version 1.3

Updated to version 1.2

Added:
- 3 new sxyboxes