iOS: Allow modules to use third party dynamic libraries

Traditionally, any library built for iOS was always a static library. This changed with Swift, and any library build with Swift is now a dynamic library instead. These dynamic libraries are just a binary, but they come in the a *.framework package.
We currently do not support dynamic frameworks Titanium.

There are a couple of things that need to happen for us to support these types of frameworks:

1. Edit your module.xcconfig to look like this

   FRAMEWORK_SEARCH_PATHS="$(SRCROOT)/../../modules/iphone/{mod.id}/{mod.ver}/platform" "/Library/Application\ Support/Titanium/modules/iphone/{mod.id}/{mod.ver}/platform" "~/Library/Application\ Support/Titanium/modules/iphone/{mod.id}/{mod.ver}/platform"

   LD_RUNPATH_SEARCH_PATHS= $(inherited) "@executable_path/Frameworks" $(FRAMEWORK_SEARCH_PATHS)

   Note: The new LD_RUNPATH_SEARCH_PATHS allows the app to find the framework. And this is the most important step for running the app on simulator.

2. Add a temporary plugin and eventually modify the CLI
   I have attached a Titanium plugin to this ticket. To use, place it in the plugins folder at the root of your project. The only change needed is line 46 of the plugins/ti.dynamiclib/hooks/ti.dynamiclib.js
   Note: This plugin is a workaround for the moment. Eventually, we'll need to copy the framework to the device and sign it. This is something that needs to happen in the CLI.
3. Modify your tiapp.xml
   And the very last thing, this is possible only with iOS 8 and greater. So make sure you have this in your tiapp.xml

   <ios>

   <min-ios-ver>8.0</min-ios-ver>

   <!-- more stuff -->

   </ios>