Update jaraco.windows to v3.6:

Dependencies:
* backports.functools-lru-cache	1.2.1
* jaraco.classes	1.3
* jaraco.collections	1.3.2
* jaraco.functools	1.11
* jaraco.structures	1.0
* jaraco.text	1.7
* jaraco.ui	1.4
* jaraco.windows	3.6
* more-itertools	2.2
* path.py	8.2.1
* six	1.10.0

libs/jaraco/ui/input.py

@@ -0,0 +1,26 @@
+"""
+This module currently provides a cross-platform getch function
+"""
+
+try:
+	# Windows
+	from msvcrt import getch
+except ImportError:
+	pass
+
+try:
+	# Unix
+	import sys
+	import tty
+	import termios
+
+	def getch():
+		fd = sys.stdin.fileno()
+		old = termios.tcgetattr(fd)
+		try:
+			tty.setraw(fd)
+			return sys.stdin.read(1)
+		finally:
+			termios.tcsetattr(fd, termios.TCSADRAIN, old)
+except ImportError:
+	pass