Annotation to be used on either methods, fields or constructor parameters to let Sling Models inject a
resource by path(s). The path may be either in the path/paths attribute or in a value map property with the given name.
if set to REQUIRED injection is mandatory, if set to OPTIONAL injection is optional, in case of DEFAULT
the standard annotations (Optional, Required) are used.
If even those are not available the default injection strategy defined on the Model applies.
Default value = DEFAULT.