import: move bib files to correct path

Moves the files imported from `bootc-image-builder` directly under `pkg`
so they can be imported in reverse. Also fix up any import paths at the
same time.

Signed-off-by: Simon de Vlieger <supakeen@redhat.com>

pkg/progress/syncwriter.go

@@ -0,0 +1,22 @@
+package progress
+
+import (
+	"io"
+	"sync"
+)
+
+type syncedWriter struct {
+	mu *sync.Mutex
+	w  io.Writer
+}
+
+func newSyncedWriter(mu *sync.Mutex, w io.Writer) io.Writer {
+	return &syncedWriter{mu: mu, w: w}
+}
+
+func (sw *syncedWriter) Write(p []byte) (n int, err error) {
+	sw.mu.Lock()
+	defer sw.mu.Unlock()
+
+	return sw.w.Write(p)
+}