* feat: Envs type
Creates a type for []Env with a String and Slice method for presenting
a set of environment variables in common formats.
* fix: Envs tests
* feat: add pvc-size flag to deploy command (#851)
* feat: move pvc-size from deploy to build func configuration section (#851)
* feat: add setting default value for pvc-size in func.yaml (#851)
* feat: change pvc-size to camel case (#851)
* feat: add omitempty to pvcSize (#851)
* feat: regenerate func yaml schema (#851)
* feat: update docs for deploy command (#851)
* feat: update usage help for the pvc-size flag (#851)
The helper Function constructor which uses a passed function as defaults
was missing map initializations. This could lead to nil pointer
exceptions as it is used by client.Init.