Version 1.3.8（current） [Common]Changed to use unsafe code by default. [Common]Optimized the amount of memory allocation, in the FaceLandmarkDetector class.

Version 1.2.2 [iOS]Added a function to automatically remove the simulator architecture(i386,x86_64) at build time. [Common] Improved DlibFaceLandmarkDetectorMenuItem.setPluginImportSettings() method. [Common]Updated to WebCamTextureToMatHelper.cs v1.0.9. [Common]Added support for Utils.setDebugMode() method on all platforms.