IInputGetIndexOfAxis Method
            Get index of a registered keyCode.
            If the target keyCode dos not exist it returns -1
Namespace: AlterunaAssembly: Alteruna.Trinity (in Alteruna.Trinity.dll) Version: 1.3.4+03e8eebec78141d9d3b2022fda2c0ac58d3116b9
int GetIndexOfAxis(
	string targetAxis
)
- targetAxis  String
 - target
 
Int32index on success, 
-1 on fail.