tree-wide: use a standard project layout

Keep main.go files under cmd/ and internal libraries under internal/.
This will allow us to add more exutables under cmd/ (whereas only one
was possible when main.go was kept in the root).

Signed-off-by: Tom Gundersen <teg@jklm.no>

cmd/osbuild-composer/main.go

@@ -11,8 +11,8 @@ import (
 	"os/signal"
 	"path/filepath"
 
-	"osbuild-composer/rpmmd"
-	"osbuild-composer/weldr"
+	"osbuild-composer/internal/rpmmd"
+	"osbuild-composer/internal/weldr"
 )
 
 const StateFile = "/var/lib/osbuild-composer/weldr-state.json"

internal/weldr/api.go

@@ -9,7 +9,7 @@ import (
 
 	"github.com/julienschmidt/httprouter"
 
-	"osbuild-composer/rpmmd"
+	"osbuild-composer/internal/rpmmd"
 )
 
 type API struct {

internal/weldr/api_test.go

@@ -10,8 +10,8 @@ import (
 	"strings"
 	"testing"
 
-	"osbuild-composer/rpmmd"
-	"osbuild-composer/weldr"
+	"osbuild-composer/internal/rpmmd"
+	"osbuild-composer/internal/weldr"
 )
 
 var repo = rpmmd.RepoConfig{