[macos] Replace Deprecated constants. (#2038)

* Replace Deprecated constants pt.1

- `NSOnState` -> `NSControlStateValueOn`
- `NSOffState` -> `NSControlStateValueOff`
- `MSMixedState` -> `NSControlStateValueMixed`

* Replace Deprecated constants pt.2

- `NS(\w+)AlertStyle` -> `NSAlertStyle$1`

* Replace Deprecated constants pt.3

- `NSFileHandlingPanel(\w+)Button` -> `NSModalResponse$1`

* Replace Deprecated constants pt.4

- `NSMouse(Entered|Exited)Mask` -> `NSEventMaskMouse$1`
- `NS(Left|Right)Mouse(Down|Up|Dragged)Mask` -> `NSEventMask$1Mouse$2`
- `NSMouse(Entered|Exited)` -> `NSEventTypeMouse$1`
- `NS(Left|Right)Mouse(Up|Down)` -> `NSEventType$1Mouse$2`

* Replace Deprecated constants pt.5

- `NSComposite(\w+)` -> `NSCompositingOperation$1`

* Replace Deprecated constants pt.6

- `NSAlternateKeyMask` -> `NSEventModifierFlagOption`
- `NSCommandKeyMask` -> `NSEventModifierFlagCommand`

* Replace Deprecated constants pt.7

- `NS(\w+)TextAlignment` -> `NSTextAlignment$1`
- `NSBackgroundStyleDark` -> `NSBackgroundStyleEmphasized`

* Replace Deprecated constants pt.8

- `NSTexturedRoundedBezelStyle` -> `NSBezelStyleTexturedRounded`
- `NSBorderlessWindowMask` -> `NSWindowStyleMaskBorderless`
- `NS(OK|Cancel)Button` -> `NSModalResponse$1`

macosx/InfoFileViewController.mm

@@ -107,7 +107,7 @@
         {
             NSInteger const filesCheckState = [torrent
                 checkForFiles:[NSIndexSet indexSetWithIndexesInRange:NSMakeRange(0, torrent.fileCount)]];
-            fCheckAllButton.enabled = filesCheckState != NSOnState; //if anything is unchecked
+            fCheckAllButton.enabled = filesCheckState != NSControlStateValueOn; //if anything is unchecked
             fUncheckAllButton.enabled = !torrent.allDownloaded; //if there are any checked files that aren't finished
         }
     }