autogen: refactor common parts into separate modules

tools/readme-autogen/constants.py

@@ -0,0 +1,24 @@
+from enum import IntEnum
+import os.path
+
+class Product(IntEnum):
+    GeForce = 10
+    Quadro = 20
+
+class WinSeries(IntEnum):
+    win10 = 10
+    win7 = 20
+    ws2012 = 30
+    ws2016 = 40
+
+BASE_PATH = os.path.dirname(os.path.abspath(__file__))
+TEMPLATE_PATH = os.path.join(os.path.dirname(os.path.abspath(__file__)),
+                             "templates")
+DATAFILE_PATH = os.path.join(BASE_PATH,
+                             "..", "..", "drivers.json")
+LINUX_README_PATH = os.path.join(BASE_PATH,
+                                 "..", "..", "README.md")
+WINDOWS_README_PATH = os.path.join(BASE_PATH,
+                                 "..", "..", "win", "README.md")
+
+ENCODING='utf-8'