Trueface SDK for iOS v2.1+2

v2.1+2
Changelog:

• Added C support

v2.1
Breaking Changes:

• Compatible exclusively with Series V2 models
• Minimum iOS requirement raised from iOS 11 to iOS 12

Changelog:

• Added support for CoreML
• Support FRv5_2 and FRv7
• Based on SDK 2.1. Please refer to the C++ SDK documentation for full details of the changes