Support new `jakarta.inject` namespace for dependency injection support

[raner]

The original JSR-330 javax.inject namespace is considered deprecated now (in favor of the new jakarta.inject namespace).

Projo should handle both the original javax.inject as well as the new jakarta.inject namespace.

This feature is scheduled to be released as part of the 1.6.0 release, but will also be released as an 1.5.5 backport.