Add details for bundled libraries

diff --git a/.pkgmeta b/.pkgmeta
index 8334870..e859df8 100644
--- a/.pkgmeta
+++ b/.pkgmeta
@@ -5,3 +5,8 @@ ignore: # Files and directories beginning with a dot (such as .git) are automati
     - README.md

 license-output: LICENSE.txt
+
+tools-used:
+    - libdatabroker-1-1
+    - libstub
+    - callbackhandler