[epiphany] Add POTFILES.skip

[Piotr Drąg <piotrdrag src gnome org>]

commit 37007c1e7c4c7b25bfd51afc7457374829fd6cd6
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Tue Feb 19 20:15:58 2019 +0100

    Add POTFILES.skip

 po/POTFILES.skip | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/po/POTFILES.skip b/po/POTFILES.skip
new file mode 100644
index 000000000..5b437b5d5
--- /dev/null
+++ b/po/POTFILES.skip
@@ -0,0 +1,4 @@
+# List of source files that should *not* be translated.
+# Please keep this file sorted alphabetically.
+subprojects/libdazzle
+subprojects/libhandy