patch 8.0.0652: unicode information is outdated

Problem:    Unicode information is outdated.
Solution:   Update to Unicode 10. (Christian Brabandt)
diff --git a/src/version.c b/src/version.c
index 98f4689..a5fdd5b 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    652,
+/**/
     651,
 /**/
     650,