patch 8.1.0764: list of distributed files is outdated

Problem:    List of distributed files is outdated.
Solution:   Remove workshop files.  Add blob files.
diff --git a/src/version.c b/src/version.c
index b2132c9..152c34e 100644
--- a/src/version.c
+++ b/src/version.c
@@ -792,6 +792,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    764,
+/**/
     763,
 /**/
     762,