cue modules: move stdlib to pkg/alpha.dagger.io

In preparation for Europa, we will vendor multiple CUE modules:

- `pkg/alpha.dagger.io`: legacy non-europa packages
- `pkg/dagger.io`: core Europa packages
- `pkg/universe.dagger.io`: Europa universe

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

pkg/alpha.dagger.io/.dagger/env/docker-run-ssh/values.yaml

@@ -0,0 +1,30 @@
+plan:
+    package: ./docker/tests/run-ssh
+name: docker-run-ssh
+inputs:
+    TestConfig.host:
+        text: 143.198.64.230
+    TestConfig.key:
+        secret: ENC[AES256_GCM,data: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,iv:gfYm2yjbr4IrAoRhPS9jbn2HwfQEhos2Xz4ghNkb0/k=,tag:lUGS4KBVczyzwu+Hp3ehXw==,type:str]
+    TestConfig.user:
+        text: root
+sops:
+    kms: []
+    gcp_kms: []
+    azure_kv: []
+    hc_vault: []
+    age:
+        - recipient: age1gxwmtwahzwdmrskhf90ppwlnze30lgpm056kuesrxzeuyclrwvpsupwtpk
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBpamtuNHB6NjY5L3VNT3hl
+            TGlmVFFoZURJR1RmZEFvSGUyVFRaSWNnSUMwClJiaDVGZWJoeDBMY21jZTVlREdS
+            aWg0SjNWN3BrTXRneXJyZy80K1JRSFUKLS0tIFEwKzdkVkNPT2VHTmtiOEdDQlZa
+            cnh2eHU5TzFjVkNvTzUyczFBL0pwTDQK60+wrLmTaD3Ws5ZAXdqBkMjaVP7Iz69k
+            UrkqkMbaUlvvSKK7dB5MuTGEEN6A1viAGal9ZjDHlSobkNPuE24QEA==
+            -----END AGE ENCRYPTED FILE-----
+    lastmodified: "2021-07-08T09:54:24Z"
+    mac: ENC[AES256_GCM,data:zp50aXIr5Px5LfDjB8kr1+/iR1vf9XD9TRuM36sdyeg6/BsIuP1t82FxCdryY1gb9YFO4V6kuZvdKQdAMSLMHI40be6QqrDv71hbwL8L0rtv2hAMWyRHjPSkBa/FfI00WiQESkHA0/0eU2FLEdPiqftwFjOwNolrHmcPIGyW06Y=,iv:2jRjpNombBsOwJzA/odGjVdqrDoLKVuGzTBxMkbF364=,tag:IbfNbR61eCddcURMPPbnWA==,type:str]
+    pgp: []
+    encrypted_suffix: secret
+    version: 3.7.1