nebula: update to 1.8.2-2

nebula: update to 1.8.2-2

The following fixes have been applied to Makefile:
* fix the nebula license type
* add PKG_CPE_ID
* remove unneeded call to Build/Compile
* add leading spaces to descriptions
* add Package/nebula/conffiles definition
* remove unneeded /lib/upgrade/keep.d files
* no longer install actual license file
* add the README file

Kudos to @BKPepe and @1715173329 for feedback which lead to these fixes

Signed-off-by: Stan Grishin <stangri@melmac.ca>
(cherry picked from commit ae22bea8ddda7dd4409ea436e34c39073c954d8d)