Version 4.12.3

[uerceg]

Native changes

• https://github.com/adjust/ios_sdk/blob/master/CHANGELOG.md#version-4122-13th-february-2018

Fixed

• Fixed Unity and Objective-C data types alignment issues and improved support for 32-bit CPU types (32-bit Support for _AdjustLaunchApp(...) #123 and special thanks to @alexeSGN).