Add new resources from cura-binary-data to Gitignore

We shouldn't add these here any more. Add them to cura-binary-data instead.

.gitignore

@@ -10,6 +10,8 @@ resources/i18n/en_7S
 resources/i18n/x-test
 resources/firmware
 resources/materials
+resources/images/whats_new
+resources/texts/whats_new
 CuraEngine.exe
 LC_MESSAGES
 .cache