Fixing tkinter on 3.5.0rc1 for some Windows machines.

[Terry Reedy]

Symptom: Using 3.5.0rc1 on Windows machines without VS2015 installed, 
import tkinter or use something that does so (Idle, Turtle, turtledemo, 
...) and get message "Your Python may not be configured for Tk."

Fix: In install directory, find /DLLs. In that find /MicrosoftVC140.CRT 
with one file vcruntime140.dll.  Move this file up into /DLLs

-- 
Terry Jan Reedy