Add copy paste functionality in Vahana vFlow OTP element

[DebugHorror]

@nimesh.singh @Jay_Sharma @vipin.verma
There is a requirement for copy pasting the number in OTP field of vFlow app.

Please refer this thread for more info.

Copy Paste OTP not working in vFlow application

I have a OTP field in my vFlow application. OTP is received on my email, I copied the OTP. When I am trying to paste the OTP in my application in OTP field then it is not working.