Line-ending fixes for most of the remaining files.

Fixes line-endings for files with extensions vcd, cc, txt, bat, fxc, inc, lst,
proto, mak, mm, cfg, res, rc, def, vmt, vsh, vbsp, inl, asm, m4, vcproj,
vcxproj, sln, in, java, la, manifest, am, and rad.

Also fixes README, CONTRIBUTING, CONTRIBUTORS, LICENSE, CHANGES, COPYING, and
gitignore.

Finally, fixes executable bits.

sp/game/ep2/Scenes/episode_2/citizen_crash_pipe.vcd

@@ -1,40 +1,40 @@
-// Choreo version 1
-actor "citizen"
-{
-  channel "Debug text"
-  {
-  }
-  channel "move to"
-  {
-    event moveto "Move to Pipe Entrance"
-    {
-      time 0.012345 2.024691
-      param "!target1"
-      param2 "Run"
-    }
-  }
-  channel "face to"
-  {
-    event face "face player"
-    {
-      time 2.055555 3.765431
-      param "!player"
-    }
-    event face "face alyx"
-    {
-      time 0.012345 2.012345
-      param "!target2"
-    }
-  }
-}
-
-scalesettings
-{
-  "CChoreoView" "108"
-  "RampTool" "100"
-  "ExpressionTool" "100"
-  "GestureTool" "100"
-  "SceneRampTool" "100"
-}
-fps 60
-snap off
+// Choreo version 1
+actor "citizen"
+{
+  channel "Debug text"
+  {
+  }
+  channel "move to"
+  {
+    event moveto "Move to Pipe Entrance"
+    {
+      time 0.012345 2.024691
+      param "!target1"
+      param2 "Run"
+    }
+  }
+  channel "face to"
+  {
+    event face "face player"
+    {
+      time 2.055555 3.765431
+      param "!player"
+    }
+    event face "face alyx"
+    {
+      time 0.012345 2.012345
+      param "!target2"
+    }
+  }
+}
+
+scalesettings
+{
+  "CChoreoView" "108"
+  "RampTool" "100"
+  "ExpressionTool" "100"
+  "GestureTool" "100"
+  "SceneRampTool" "100"
+}
+fps 60
+snap off