- Adds debian_package_install method to the jinja environment
that will return the necessary set of commands needed to
install packages via apt-get and/or URLs to .deb packages
- Updates install_packages macro to make use of the method
above
Change-Id: Ie9318a7def54b5034ba91375fd8fd3b589d18349
Partially-implements: blueprint third-party-plugin-support
To correctly customize lists, we need to specify *_append, *_remove or
*_override variable in customization file.
Change-Id: I18d67ab89089e2696399ff1b99c1047a2f554442
Partially-implements: blueprint third-party-plugin-support