Add `kp` to the list of tooling in Carvel docker image

[Turbots]

Describe the problem/challenge you have
As a developer using the Tanzu portfolio, I am often required to use the carvel tools in my CI/CD pipelines at various stages i the process. One of the stages is typically to build a container image using kpack or Tanzu Build Service. Both can be configured/triggered using the kp CLI.

Describe the solution you'd like
Add the latest kp CLI to the set of tools in this image.

Anything else you would like to add:
Additionally, might be nice to add git/kubectl CLI tools in there as well, for flexibility. Alternatively, we might extend from this image and build a CI/CD based image containing Carvel, kp, kubectl and git.

[cppforlife]

Alternatively, we might extend from this image and build a CI/CD based image containing Carvel, kp, kubectl and git.

i think that's a better solution. carvel image was/is meant to include just the carvel suite tools.

you can either inherit or use copy from this image necessary binaries.

[cppforlife]

closing per above comment.