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/http/.gitignore

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

pkg/alpha.dagger.io/.dagger/env/http/values.yaml

@@ -0,0 +1,27 @@
+plan:
+    package: ./http/tests
+name: http
+inputs:
+    TestDockersocket:
+        socket:
+            unix: /var/run/docker.sock
+sops:
+    kms: []
+    gcp_kms: []
+    azure_kv: []
+    hc_vault: []
+    age:
+        - recipient: age1gxwmtwahzwdmrskhf90ppwlnze30lgpm056kuesrxzeuyclrwvpsupwtpk
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBhYjNpR1NHc3V4aGxGNzQ1
+            YlZuQ0hrZHBDWGw0elJWZWU3c0U4KzVodEhzCkowME9JVlpWVEc1L2dHUE80Q29t
+            bEpKTzRwYmhyc2N2a3dhaWg4aWZVWTQKLS0tIHNPWDVaQmh6SllzK2V3QjNJSWVH
+            NHkxc1VXWHBwZFN5WFNxamdPaGZLM3MKaZra2gWvKl7+pXSihV70/mQYel9697z2
+            eBSMuRPuZSjrg3JCBLhXTdIgUYxbMgWhILLpN5UqhTBVboUlRsURQA==
+            -----END AGE ENCRYPTED FILE-----
+    lastmodified: "2021-11-23T17:30:31Z"
+    mac: ENC[AES256_GCM,data:R82VFQG+vtFoH/H4R3TGfFzcmEBLRWv81/pfbYIoWGTH3iFmVgfiCXuqF2O4suhG6mlmiGVDCFBBGPfFvOIBPSwbAqOoNQrM+pXPk3nrm3KY6RLSiByZX3yS1G2HHzGSbQVDuxlTBGyXhpJZs1ZgysZguHUqtunbrjSpD4+iWE8=,iv:LhTwB1QKXCXz9tu03d5NHIv/Jwrgg3LXQYafXykFz/o=,tag:h0mgHTyfxflAuv/uYuRibw==,type:str]
+    pgp: []
+    encrypted_suffix: secret
+    version: 3.7.1