If a package (i.e. a collection of units that work together) is being compiled, then this section is
used to keep package information. The following information can be stored:
- The name of the package. When installing it under the package directory, this name
will be used to create a directory (unless it is overridden by one of the installation
- The version of this package.
- If the package is part of another package, this key can be specified to indicate which
package it is part of.