universe vendoring

Rather than injecting universe at runtime, this change will vendor
alpha.dagger.io in `cue.mod` directly.

Fixes #700

Signed-off-by: Andrea Luzzardi <aluzzardi@gmail.com>

.dagger/env/test-core/.gitignore

@@ -1,2 +0,0 @@
-# dagger state
-state/**

.dagger/env/test-core/plan/test-core.cue

@@ -1,15 +0,0 @@
-package testcore
-
-import (
-	"alpha.dagger.io/dagger"
-)
-
-name: dagger.#Input & {
-	string | *"world"
-}
-
-message: dagger.#Output & "Hello, \(name)!"
-
-dir: dagger.#Input & dagger.#Artifact
-
-samedir: dagger.#Output & dir

.dagger/env/test-core/values.yaml

@@ -1,27 +0,0 @@
-plan:
-    module: .dagger/env/test-core/plan
-name: test-core
-inputs:
-    dir:
-        dir:
-            path: ./tests
-sops:
-    kms: []
-    gcp_kms: []
-    azure_kv: []
-    hc_vault: []
-    age:
-        - recipient: age1gxwmtwahzwdmrskhf90ppwlnze30lgpm056kuesrxzeuyclrwvpsupwtpk
-          enc: |
-            -----BEGIN AGE ENCRYPTED FILE-----
-            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBhOW1rUy9vNFBDaXRDUHJu
-            ZVZYM1FucVorRDdUcmRaYmg3eTlTNzhhYWdjCndWZWxhZnhCZG4xZU9JQ1VyMXdR
-            OHY0TS81bk9FL2JuUEhuTmcxa29ORGcKLS0tIGxJUzNrZmRBNHZGRFY2Z01QK2JP
-            MlM1Ukdqbi9SQ0pqTi9FZ3MxN2E2QmsKHwd7P6KHPVdynOoto1jf3G4+5+vf87wU
-            HX1KD7Od5wRdBwn7r3OS8mdvuNIYpJDUb5YDrfjQypt020ohLocNiA==
-            -----END AGE ENCRYPTED FILE-----
-    lastmodified: "2021-06-17T14:07:53Z"
-    mac: ENC[AES256_GCM,data:afYut7wdvsJQgxlBg6NEV6DWk8vPi81mZgQAuWb4oe4WJeI1T9cYdtjOHPlmIpjqb86VQHJ29YTzektei2+k+VBawQxcsvefK7X1QboJTfMKLfsiug4qzNWjc7JZDvTb6dsDFM1U96gjSoAIVwdLMnucbu3681Fd7qSQgqNS61Q=,iv:ZQDHzXp0RJcUI4RtOVjdepV8zTa2kIHQhAltLkudDck=,tag:AnSFi1mKrEuXSqE4R+g7dw==,type:str]
-    pgp: []
-    encrypted_suffix: secret
-    version: 3.7.1