Alternate object IDs, skip of non-licensed object IDs for license generation, remove of obsolete objects, minor changes

Major changes

• All OBSOLETE objects that were marked to be removed in 2021 were finally removed.
• Support for alternate object IDs (to have two ranges for the same extension - one for the on-premises, the second one for cloud).
• Add setting to the assignable range to skip default, non-licensed, object ids.

Other changes

• Generated ranges in license file generation have merged ranges if the range is the whole range.
• The extension usage is now renameable (only those extensions that aren't per bc instance).