add libzstd.a

Author: kbkpbot

.gitignore

@@ -22,10 +22,10 @@
 *.pch
 
 # Libraries
-*.lib
-*.a
-*.la
-*.lo
+#*.lib
+#*.a
+#*.la
+#*.lo
 
 # Shared objects (inc. Windows DLLs)
 *.dll