dagger compute auto-fetches standard library from external repo

- Standard library is hosted at github.com/blocklayerhq/dagger-stdlib
- When dagger repo is made public, stdlib can be hosted from same repo
- Vendored cue.mod is merged with stdlib at file granularity
- When developing dagger, set DAGGER_DEV_STDLIB to a local stdlib
  directory

Signed-off-by: Solomon Hykes <sh.github.6811@hykes.org>

examples/simple/cue.mod/pkg/dagger.cloud/dagger/dagger.cue

@@ -1,62 +0,0 @@
-package dagger
-
-
-// Any component can be referenced as a directory, since
-// every dagger script outputs a filesystem state (aka a directory)
-#Dir: #dagger: compute: [...#Op]
-
-// One operation in a script
-#Op: #FetchContainer | #FetchGit | #Export | #Exec | #Local | #Copy | #Load | #Subdir
-
-// Export a value from fs state to cue
-#Export: {
-	do: "export"
-	// Source path in the container
-	source: string
-	format: "json" | "yaml" | *"string"
-}
-
-#Local: {
-	do:      "local"
-	dir:     string
-	include: [...string] | *[]
-}
-
-// FIXME: bring back load (more efficient than copy)
-
-#Load: {
-	do:   "load"
-	from: _
-}
-
-#Subdir: {
-	do:  "subdir"
-	dir: string | *"/"
-}
-
-#Exec: {
-	do: "exec"
-	args: [...string]
-	env?: [string]: string
-	always?: true | *false
-	dir:     string | *"/"
-	mount: [string]: "tmp" | "cache" | { from: _, path: string | *"/" }
-}
-
-#FetchContainer: {
-	do:  "fetch-container"
-	ref: string
-}
-
-#FetchGit: {
-	do:     "fetch-git"
-	remote: string
-	ref:    string
-}
-
-#Copy: {
-	do:   "copy"
-	from: _
-	src:  string | *"/"
-	dest: string | *"/"
-}