title: Scaffold-DbContext doese not add [DatabaseGenerated(DatabaseGeneratedOption.Computed)] on Generated class
body: <p>I am using EF Core 3.1 with a database-first approach using Linq-to-Entities.
  but when I cerate my models with this code</p>
  <pre><code>Scaffold-DbContext &quot;Server=xxxx;Database=xx;Trusted_Connection=True;Integrated security=false;User id=xx;Password=xx;&quot; Microsoft.EntityFrameworkCore.SqlServer -f -OutputDir Models
  </code></pre>
  <p>it does not add proper <code>[DatabaseGenerated(DatabaseGeneratedOption.Computed)]</code> on generated class properties with default values.</p>
  <p>this is my table Script :</p>
  <pre><code>CREATE TABLE [dbo].[member](
      [id] [bigint] IDENTITY(1,1) NOT NULL,
      [fName] [nvarchar](20) NOT NULL,
      [lName] [nvarchar](30) NOT NULL,
      [gender] [bit] NOT NULL,
      [birthDate] [date] NULL,
      [education] [tinyint] NOT NULL,
      [province] [tinyint] NOT NULL,
      [image] [nvarchar](200) NOT NULL,
   CONSTRAINT [PK_Member] PRIMARY KEY CLUSTERED 
  (
      [id] ASC
  )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
  ) ON [PRIMARY]
  
  GO
  
  SET ANSI_PADDING OFF
  GO
  
  ALTER TABLE [dbo].[member] ADD  CONSTRAINT [DF_member_gender]  DEFAULT ((0)) FOR [gender]
  GO
  
  ALTER TABLE [dbo].[member] ADD  CONSTRAINT [DF_member_birthDate]  DEFAULT (NULL) FOR [birthDate]
  GO
  
  ALTER TABLE [dbo].[member] ADD  CONSTRAINT [DF_member_education]  DEFAULT ((1)) FOR [education]
  GO
  
  ALTER TABLE [dbo].[member] ADD  CONSTRAINT [DF_member_province]  DEFAULT ((1)) FOR [province]
  GO
  
  ALTER TABLE [dbo].[member] ADD  CONSTRAINT [DF_member_image]  DEFAULT ('') FOR [image]
  GO
  
  ALTER TABLE [dbo].[member]  WITH CHECK ADD  CONSTRAINT [FK_Member_education] FOREIGN KEY([education])
  REFERENCES [dbo].[education] ([id])
  GO
  
  ALTER TABLE [dbo].[member] CHECK CONSTRAINT [FK_tblMember_education]
  GO
  
  ALTER TABLE [dbo].[member]  WITH CHECK ADD  CONSTRAINT [FK_Member_Province] FOREIGN KEY([province])
  REFERENCES [dbo].[province] ([id])
  GO
  
  ALTER TABLE [dbo].[member] CHECK CONSTRAINT [FK_Member_Province]
  GO
  </code></pre>