Add libcamera - dummy (for now)

device/libcamera/buffer_list.cc

@@ -0,0 +1,30 @@
+#include "libcamera.hh"
+
+extern "C" {
+#include "device/buffer_list.h"
+#include <stdlib.h>
+};
+
+int libcamera_buffer_list_open(buffer_list_t *buf_list, unsigned width, unsigned height, unsigned format, unsigned bytesperline)
+{
+  buf_list->libcamera = new buffer_list_libcamera_t{};
+  return 0;
+}
+
+void libcamera_buffer_list_close(buffer_list_t *buf_list)
+{
+  if (buf_list->libcamera) {
+    delete buf_list->libcamera;
+    buf_list->libcamera = NULL;
+  }
+}
+
+int libcamera_buffer_list_set_buffers(buffer_list_t *buf_list, int nbufs)
+{
+  return -1;
+}
+
+int libcamera_buffer_list_set_stream(buffer_list_t *buf_list, bool do_on)
+{
+  return -1;
+}