container-runtime-csv.bbclass: add bbclass to generate container CSVs
container-runtime-csv.bbclass: add bbclass to generate container CSVs

* Have packages RDEPEND on csv packages when 'virtualization' is present
  in DISTRO_FEATURES

* CSV_CONTAINER_FILES enumerates the files/directories for inclusion
  in the CSV file, using glob patterns

* CSV_CONTAINER_EXTRA enumerates additional hard-coded lines in the CSV

madisongh/meta-tegra,madisongh/meta-tegra,madisongh/meta-tegra,madisongh/meta-tegra,madisongh/meta-tegra