[Feature Request]: add fission App and fission CLI

[developer-guy]

Fission is a fast, open-source serverless framework for Kubernetes with a focus on developer productivity and high performance. :octocat: Github Repository: https://github.com/fission/fission :octocat: Github Star: 6.5k 💬 Contributors: 126

Expected Behaviour

To support installing fission app and fission CLI

Current Behaviour

No support

Are you a GitHub Sponsor (Yes/No?)

Check at https://github.com/sponsors/alexellis

• [x] Yes
• [ ] No

Possible Solution

There are various ways to install fission, please see. For fission CLI, please see.

Steps to Reproduce (for bugs)

Context

Your Environment

• What Kubernetes distribution are you using?

kubectl version

• Operating System and version (e.g. Linux, Windows, MacOS):

uname -a

cat /etc/os-release

• What arkade version is this?

arkade version