iOS library rework (#1069)

* initial commit for osama to add to

* update sidenav

* lol yml

* copy edits

* little more copy edit

* more copy edits

* remove stub file, comment out swift TODOs

* nitpick

Author: sanscontext

src/_data/sidenav/strat.yml

@@ -72,3 +72,18 @@ sections:
     title: Querystring API
   - path: /connections/sources/catalog/libraries/website/javascript/troubleshooting
     title: Troubleshooting
+
+
+- slug: ios
+  section_title: Analytics-iOS Documentation
+  section:
+  - path: /connections/sources/catalog/libraries/mobile/ios
+    title: Analytics-iOS mobile source
+  - path: /connections/sources/catalog/libraries/mobile/ios/quickstart
+    title: iOS Quickstart tutorial
+  - path: /connections/sources/catalog/libraries/mobile/ios/middleware
+    title: Middlewares for iOS
+  - path: /connections/sources/catalog/libraries/mobile/ios/troubleshooting
+    title: Troubleshooting Analytics-iOS
+  - path: /connections/sources/catalog/libraries/mobile/ios/ios-faqs
+    title: iOS Frequently asked questions