Initial prototype of multi-platform version

ios/.gitignore

@@ -0,0 +1,28 @@
+!default.mode1v3
+!default.mode2v3
+!default.pbxuser
+!default.perspectivev3
+*.dSYM
+*.dSYM.zip
+*.hmap
+*.ipa
+*.mode1v3
+*.mode2v3
+*.moved-aside
+*.pbxuser
+*.perspectivev3
+*.xccheckout
+*.xcscmblueprint
+*.xcworkspace
+.build/
+Carthage/Build
+DerivedData/
+build/
+fastlane/Preview.html
+fastlane/report.xml
+fastlane/screenshots/**/*.png
+fastlane/test_output
+iOSInjectionProject/
+playground.xcworkspace
+timeline.xctimeline
+xcuserdata/