patch 8.1.0735: cannot handle binary data

Problem:    Cannot handle binary data.
Solution:   Add the Blob type. (Yasuhiro Matsumoto, closes #3638)
diff --git a/src/globals.h b/src/globals.h
index 3f67d13..c3930ad 100644
--- a/src/globals.h
+++ b/src/globals.h
@@ -1524,6 +1524,8 @@
 EXTERN char_u e_emptykey[]	INIT(= N_("E713: Cannot use empty key for Dictionary"));
 EXTERN char_u e_dictreq[]	INIT(= N_("E715: Dictionary required"));
 EXTERN char_u e_listidx[]	INIT(= N_("E684: list index out of range: %ld"));
+EXTERN char_u e_blobidx[]	INIT(= N_("E979: Blob index out of range: %ld"));
+EXTERN char_u e_invalblob[]	INIT(= N_("E978: Invalid operation for Blob"));
 EXTERN char_u e_toomanyarg[]	INIT(= N_("E118: Too many arguments for function: %s"));
 EXTERN char_u e_dictkey[]	INIT(= N_("E716: Key not present in Dictionary: %s"));
 EXTERN char_u e_listreq[]	INIT(= N_("E714: List required"));