add libsodium-dev to package list

QuietMisdreavus · web-flow · commit f41636e2e5c6 · 2019-02-18T12:56:33.000-06:00
The crate `libsodium-sys` depends on having the libsodium headers available.
diff --git a/packages.txt b/packages.txt
@@ -535,6 +535,7 @@ libsnappy1v5
 libsndfile1
 libsndio6.1
 libsndio-dev
+libsodium-dev
 libsoup2.4-1
 libsoup2.4-dev
 libsoup-gnome2.4-1
