Add the alpha <resource> delete command

[pPrecel]

Description

Changes proposed in this pull request:

• make the delete template command

How to run it

1. add the following configmap to the cluster:

apiVersion: v1
data:
  rootCommand: |
    name: function
    description: Set of commands for managing Functions
    descriptionLong: Use this command manage Functions
  resource: |
    scope: namespace
    kind: Function
    version: v1alpha2
    group: serverless.kyma-project.io
  templateCommands: |
    delete:
      description: "delete function"
      descriptionLong: "use this command to remove function from a cluster"
kind: ConfigMap
metadata:
  labels:
    kyma-cli/extension: resource
    kyma-project.io/module: function
  name: serverless.function.cli
  namespace: kyma-system

2. build the cli from this PR:

go build --output kyma-dev main.go

3. use command

./kyma-dev alpha --help

Related issue(s)

• Implement CLI commands for serverless module serverless#1247

[halamix2]

/cla

[kyma-bot]

Successfully reached out to cla-assistant.io to initialize recheck of PR #2321

[kyma-bot]

New changes are detected. LGTM label has been removed.