Base class for implementing sysroots and toolchains for IL2CPP
| HostArch | Returns name of the host architecture |
| HostPlatform | Returns name of the host platform |
| Name | Returns name of the sysroot |
| TargetArch | Returns name of the target architecture |
| TargetPlatform | Returns name of the target platform |
| GetIl2CppArguments | Returns the next Il2Cpp argument on each call |
| Initialize | Initializes sysroot |