Update bitflags to 2.0

Co-authored-by: dAxpeDDa <daxpedda@gmail.com>

src/platform_impl/macos/appkit/application.rs

@@ -109,6 +109,7 @@ unsafe impl Encode for NSApplicationActivationPolicy {
 }
 
 bitflags! {
+    #[derive(Debug, Clone, Copy)]
     pub struct NSApplicationPresentationOptions: NSUInteger {
         const NSApplicationPresentationDefault = 0;
         const NSApplicationPresentationAutoHideDock = 1 << 0;

src/platform_impl/macos/appkit/event.rs

@@ -194,6 +194,7 @@ const NX_DEVICERALTKEYMASK: u32 = 0x00000040;
 const NX_DEVICERCTLKEYMASK: u32 = 0x00002000;
 
 bitflags! {
+    #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
     pub struct NSEventModifierFlags: NSUInteger {
         const NSAlphaShiftKeyMask                     = 1 << 16;
         const NSShiftKeyMask                          = 1 << 17;
@@ -212,6 +213,7 @@ unsafe impl Encode for NSEventModifierFlags {
 }
 
 bitflags! {
+    #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
     pub struct NSEventPhase: NSUInteger {
        const NSEventPhaseNone        = 0;
        const NSEventPhaseBegan       = 0x1 << 0;

src/platform_impl/macos/appkit/window.rs

@@ -336,6 +336,7 @@ unsafe impl Encode for NSWindowLevel {
 }
 
 bitflags! {
+    #[derive(Clone, Copy)]
     pub struct NSWindowOcclusionState: NSUInteger {
         const NSWindowOcclusionStateVisible = 1 << 1;
     }
@@ -346,6 +347,7 @@ unsafe impl Encode for NSWindowOcclusionState {
 }
 
 bitflags! {
+    #[derive(Debug, Clone, Copy)]
     pub struct NSWindowStyleMask: NSUInteger {
         const NSBorderlessWindowMask      = 0;
         const NSTitledWindowMask          = 1 << 0;

src/platform_impl/macos/view.rs

@@ -71,6 +71,7 @@ enum ImeState {
 }
 
 bitflags! {
+    #[derive(Debug, Clone, Copy, PartialEq)]
     struct ModLocationMask: u8 {
         const LEFT = 1;
         const RIGHT = 2;