science/salome-configuration: Update 9_11_0 => 9_15_0, undeprecate
Changelogs:
* https://github.com/SalomePlatform/configuration/compare/V9_11_0...V9_15_0
* Switch MASTER_SITES to Github
+ Add second WWW for source code repository
+ Add LICENSE and LICENSE_FILE
science/salome-kernel: fix fetch, improve, undeprecate
* Switch MASTER_SITES to Github
+ Add second WWW for source code repository