patch 8.1.0869: Travis CI script is too complicated

Problem:    Travis CI script is too complicated.
Solution:   Add names to environments.  Move appveyor script outside of src
            directory. (Ozaki Kiichi, closes #3890)
diff --git a/Filelist b/Filelist
index e053619..70372b3 100644
--- a/Filelist
+++ b/Filelist
@@ -7,8 +7,8 @@
 		.lgtm.yml \
 		.travis.yml \
 		appveyor.yml \
+		ci/appveyor.bat \
 		src/Make_all.mak \
-		src/appveyor.bat \
 		src/README.txt \
 		src/alloc.h \
 		src/arabic.c \