Tests moved into separate folders (#3794)

Fix android crash on application exit

tests/app/fetch/fetch.md

@@ -0,0 +1,27 @@
+---
+nav-title: "fetch How-To"
+title: "fetch"
+environment: nativescript
+description: "Examples for using fetch"
+previous_url: /ApiReference/fetch/HOW-TO
+---
+### Get Response from URL
+{%snippet fetch-response%}
+
+### Get string from URL
+{%snippet fetch-string%}
+
+### Get JSON from URL
+{%snippet fetch-json%}
+
+### Get FormData from URL
+{%snippet fetch-formdata%}
+
+### Get Response status
+{%snippet fetch-status-response%}
+
+### Get response headers
+{%snippet fetch-headers-response%}
+
+### Post JSON
+{%snippet fetch-post-json%}