The only non-trivial file (>15 lines, and not a simple listing
of other file names) that remains without a copyright notice
is the README.

* Build.PL: Add copyright.
* docs/intro.pod: Likewise.
* lib/Sys/Virt/TCK.pm: Likewise.
* lib/Sys/Virt/TCK/Capabilities.pm: Likewise.
* lib/Sys/Virt/TCK/DomainBuilder.pm: Likewise.
* lib/Sys/Virt/TCK/NetworkBuilder.pm: Likewise.
* lib/Sys/Virt/TCK/StoragePoolBuilder.pm: Likewise.
* lib/Sys/Virt/TCK/StorageVolBuilder.pm: Likewise.
* lib/Sys/Virt/TCK/TAP/XMLFormatter.pm: Likewise.
* lib/Sys/Virt/TCK/TAP/XMLFormatterSession.pm: Likewise.
* t/050-capabilities.t: Likewise.
* t/070-domain-builder.t: Likewise.
* t/080-network-builder.t: Likewise.
* t/090-storage-pool-builder.t: Likewise.
* t/100-storage-vol-builder.t: Likewise.