Ground work for Wino Calendar. (#475)

Wino Calendar abstractions.

Wino.Core.Domain/Entities/Shared/MailAccountPreferences.cs

@@ -0,0 +1,54 @@
+using System;
+using SQLite;
+
+namespace Wino.Core.Domain.Entities.Shared
+{
+    public class MailAccountPreferences
+    {
+        [PrimaryKey]
+        public Guid Id { get; set; }
+
+        /// <summary>
+        /// Id of the account in MailAccount table.
+        /// </summary>
+        public Guid AccountId { get; set; }
+
+        /// <summary>
+        /// Gets or sets whether sent draft messages should be appended to the sent folder.
+        /// Some IMAP servers do this automatically, some don't.
+        /// It's disabled by default.
+        /// </summary>
+        public bool ShouldAppendMessagesToSentFolder { get; set; }
+
+        /// <summary>
+        /// Gets or sets whether the notifications are enabled for the account.
+        /// </summary>
+        public bool IsNotificationsEnabled { get; set; }
+
+        /// <summary>
+        /// Gets or sets whether the account has Focused inbox support.
+        /// Null if the account provider type doesn't support Focused inbox.
+        /// </summary>
+        public bool? IsFocusedInboxEnabled { get; set; }
+
+        /// <summary>
+        /// Gets or sets whether signature should be appended automatically.
+        /// </summary>
+        public bool IsSignatureEnabled { get; set; }
+
+        /// <summary>
+        /// Gets or sets whether this account's unread items should be included in taskbar badge.
+        /// </summary>
+        public bool IsTaskbarBadgeEnabled { get; set; } = true;
+
+        /// <summary>
+        /// Gets or sets signature for new messages. Null if signature is not needed.
+        /// </summary>
+        public Guid? SignatureIdForNewMessages { get; set; }
+
+        /// <summary>
+        /// Gets or sets signature for following messages. Null if signature is not needed.
+        /// </summary>
+        public Guid? SignatureIdForFollowingMessages { get; set; }
+    }
+}