In this milestone we will provide the rest of the functionality from the proposal

• Add the alias, the ability to install the same package multiple times
• Add the concept of optional package installation
• Add the ability to the package author to inform a package can only be installed once or more times per cluster

Link to proposal https://github.com/carvel-dev/carvel/blob/develop/proposals/kapp-controller/004-dependency-resolution/README.md