Add support for K8s.io KinD + Sysbox

[rodnymolina]

The goal here is to allow KinD tool to be able to create K8s clusters running over Sysbox containers. Sysbox would offer the following benefits over KinD's default runtime (runc):

• Security: Sysbox would allow secure containers to be utilized as K8s-nodes -- currently KinD can only run over 'privileged' containers.
• Simplicity: KinD's Dockerfile images could be drastically simplified as Sysbox absorbs most of the complexity required to allow K8s execution.
• Flexibility: Sysbox imposes no restrictions on the docker images to utilize, so users would have more flexibility to define their own (customized) K8s-node images, including inner images corresponding to K8s components and/or applications.

The following issue has been filed in KinD's project to track this effort: kubernetes-sigs/kind#1772.

[ctalledo]

See this comment regarding the feasibility of realizing the simplicity and flexibility benefits: https://github.com/nestybox/sysbox/issues/70#issuecomment-692200331