hub: a podenv collection of applications and functions

Please note that this is a work in progress, the structure maybe subject to change.

Entrypoint is the package.dhall file.

Howto add a new default environment

• First create an environment file, for example:

{- ./environments/my-new-env.dhall -}
(../schemas/Env)::{
    name = "my-new-env"
}

• Then add it to the environments.dhall file, for example:

{ ...
, ...
, MyNewEnv = ./environments/my-new-env.dhall
}

• And adds to the defaults.dhall list:

[ ...
, ./functions/Fedora.dhall Envs.MyNewEnv
]