Move code into new component package

This commit cleans up the resources in the 'embed' package, and instead
moves them into subpackages of a new 'compose' package. This makes sure
that '.env' templates and docker compose contexts are located in the
same location.

component/triplestore/triplestore.go

@@ -0,0 +1,44 @@
+package triplestore
+
+import (
+	"context"
+	"embed"
+	"io/fs"
+	"path/filepath"
+	"time"
+
+	"github.com/FAU-CDI/wisski-distillery/component"
+	"github.com/FAU-CDI/wisski-distillery/internal/stack"
+)
+
+type Triplestore struct {
+	component.ComponentBase
+
+	BaseURL string // upstream server url
+
+	PollContext  context.Context // context to abort polling with
+	PollInterval time.Duration   // duration to wait for during wait
+}
+
+func (Triplestore) Name() string {
+	return "triplestore"
+}
+
+//go:embed all:stack
+var resources embed.FS
+
+func (ts Triplestore) Stack() stack.Installable {
+	return ts.ComponentBase.MakeStack(stack.Installable{
+		Resources:   resources,
+		ContextPath: "stack",
+
+		CopyContextFiles: []string{"graphdb.zip"}, // TODO: Move into constant?
+
+		MakeDirsPerm: fs.ModeDir | fs.ModePerm,
+		MakeDirs: []string{
+			filepath.Join("data", "data"),
+			filepath.Join("data", "work"),
+			filepath.Join("data", "logs"),
+		},
+	})
+}