This is a work-in-progress PR that aims to upgrade the image api to the new version that uses far less memory and copies than the previous. This is a change that requires the new service to use, so should not be merged/released until a new compatible service is available.

Changes:

• LeapImageRetriever has been updated to use the new image API
• LeapImageRetriever now only deals with a single image instead of separating raw and 'bright'
• Deleted LeapDeviceInfo entirely! Now you need to connect to the Controller to get info.
• Deleted that weird class EyeType. We use correct and non-hacky apis 'round here!
• LeapEyeDislocator now grabs correct baseline from the current device, or uses a custom baseline the user can specify in the inspector
• LeapEyeDislocator now uses the tilt and offsets in the XRServiceProvider so that the hands always line up with the image
• LeapEyeDislocator now uses the correct StereoViewMatrix apis instead of doing weird hacky stuff in OnPreRender. Now supports single pass stereo!
• LeapCG.cginc has been modified to support single pass stereo.
• Added the ability to profile the worker thread in the LeapCSharp dll
• Added an OnDeviceSafe callback to the LeapServiceProvider for ease of getting access to leap devices
• LeapServiceProvider no longer can create multiple controllers (createController is a no-op if a controller already exists)
• Leap shaders have been moved into a Shaders folder instead of Resources so that they don't always get included in every single build
• Added small attribute that allows you to control the name of a property in the inspector
• Added TryPeek and a new TryDequeue overload to the ProduceConsume buffer

Things left to do:

• Build a 32 bit version of the LeapC.dll
• Build the android version of the LeapC.so
• Build a version of LeapCSharp that allows debugging
• Implement a pooling strategy inside of LeapCSharp so we are not constantly allocating tons of memory (PR 8236 on platform)
• Stop hardcoding the baseline (currently hardcoded to 0.04 so things don't line up properly on some devices)
• Consider making this the PR where we finally get device info correct? (Pls?)
• Add diagnostic tools to the provider so we can test the efficiency of the new api
• Allow the device tilt params on the temporal warping script to affect the images as well as the hands