Putty directory is missing from \Engine\Extras\ThirdPartyNotUE\ in binary builds from the Launcher

cmd.exe is returning a "The system cannot find the path specified." error when the automationtool is looking for PLINK.exe. That executable should be located in \UE_4.15\Engine\Extras\ThirdPartyNotUE\putty\, but this folder is not included in binary builds. The folder does exist in GitHub and Perforce builds.

I spoke to RCL and this needs to be included.

Repro:

1. Create a BP first person template project
2. In UE4Editor, select Window > Developer Tools > Device Manager and expand the unlisted device section.
3. Add a device with the following settings:
   1. Platform = LinuxNoEditor
   2. Device Identifer = <ip address of linux machine>
   3. Display Name = <you're choice>
   4. User = <user's pwd of the linux machine>
4. Select the add button and close Device Manager
5. Inside of Editor Preferences > Level Editor > Play > Play on Device set the Launch Configuration to Same As Editor if it is not already.
6. Click the Launch drop-down and select the profile for the Linux machine you made.
7. Open the output log if it is not already.

Result:
Launching onto the Linux machine fails during the build phase when the automationtool tries to run PLINK.exe located inside \UE4\Engine\Extras\ThirdPartyNotUE\putty\.

Expected:
Successful launch on to the Linux machine from a Windows machine.