gitignore: Bulk ignore all *-test files

.gitignore

@@ -12,6 +12,7 @@
 *.trs
 *.tar.xz
 *~
+*-test
 .libs
 .dirstamp
 cscope.out
@@ -37,24 +38,7 @@ ctags
 /test-driver
 Makefile
 Makefile.in
-array-test
-client-test
-connection-test
-cpp-compile-test
-display-test
-event-loop-test
 exec-fd-leak-checker
 fixed-benchmark
-fixed-test
-headers-test
-list-test
-map-test
-message-test
-os-wrappers-test
-queue-test
-resources-test
-sanity-test
-signal-test
-socket-test
 /wayland-scanner
 protocol/*.[ch]