Fixes for enum values. Added Flags attribute

Author: JunaMeinhold

Hexa.NET.ImGui/Generated/Delegates/Delegates.000.cs

@@ -17,6 +17,7 @@ namespace Hexa.NET.ImGui
 	/// To be documented.
 	/// </summary>
 	[NativeName(NativeNameType.Enum, "ImDrawFlags_")]
+	[Flags]
 	public enum ImDrawFlags : int
 	{
 		/// <summary>

Hexa.NET.ImGui/Generated/Enums/ImDrawFlags.cs

@@ -17,6 +17,7 @@ namespace Hexa.NET.ImGui
 	/// To be documented.
 	/// </summary>
 	[NativeName(NativeNameType.Enum, "ImDrawListFlags_")]
+	[Flags]
 	public enum ImDrawListFlags : int
 	{
 		/// <summary>

Hexa.NET.ImGui/Generated/Enums/ImDrawListFlags.cs

@@ -17,6 +17,7 @@ namespace Hexa.NET.ImGui
 	/// To be documented.
 	/// </summary>
 	[NativeName(NativeNameType.Enum, "ImFontAtlasFlags_")]
+	[Flags]
 	public enum ImFontAtlasFlags : int
 	{
 		/// <summary>

Hexa.NET.ImGui/Generated/Enums/ImFontAtlasFlags.cs

@@ -17,6 +17,7 @@ namespace Hexa.NET.ImGui
 	/// To be documented.
 	/// </summary>
 	[NativeName(NativeNameType.Enum, "ImGuiActivateFlags_")]
+	[Flags]
 	public enum ImGuiActivateFlags : int
 	{
 		/// <summary>

Hexa.NET.ImGui/Generated/Enums/ImGuiActivateFlags.cs

@@ -17,6 +17,7 @@ namespace Hexa.NET.ImGui
 	/// To be documented.
 	/// </summary>
 	[NativeName(NativeNameType.Enum, "ImGuiAxis")]
+	[Flags]
 	public enum ImGuiAxis : int
 	{
 		/// <summary>

Hexa.NET.ImGui/Generated/Enums/ImGuiAxis.cs

@@ -17,6 +17,7 @@ namespace Hexa.NET.ImGui
 	/// To be documented.
 	/// </summary>
 	[NativeName(NativeNameType.Enum, "ImGuiBackendFlags_")]
+	[Flags]
 	public enum ImGuiBackendFlags : int
 	{
 		/// <summary>

Hexa.NET.ImGui/Generated/Enums/ImGuiBackendFlags.cs

@@ -17,6 +17,7 @@ namespace Hexa.NET.ImGui
 	/// To be documented.
 	/// </summary>
 	[NativeName(NativeNameType.Enum, "ImGuiButtonFlags_")]
+	[Flags]
 	public enum ImGuiButtonFlags : int
 	{
 		/// <summary>

Hexa.NET.ImGui/Generated/Enums/ImGuiButtonFlags.cs

@@ -17,6 +17,7 @@ namespace Hexa.NET.ImGui
 	/// To be documented.
 	/// </summary>
 	[NativeName(NativeNameType.Enum, "ImGuiButtonFlagsPrivate_")]
+	[Flags]
 	public enum ImGuiButtonFlagsPrivate : int
 	{
 		/// <summary>

Hexa.NET.ImGui/Generated/Enums/ImGuiButtonFlagsPrivate.cs

@@ -17,6 +17,7 @@ namespace Hexa.NET.ImGui
 	/// To be documented.
 	/// </summary>
 	[NativeName(NativeNameType.Enum, "ImGuiChildFlags_")]
+	[Flags]
 	public enum ImGuiChildFlags : int
 	{
 		/// <summary>