Initial commit.

- Created and set up main projects
- Created classes for Domain

PhonebookService.Domain/Models/PhonebookRecord.cs

@@ -0,0 +1,25 @@
+namespace PhonebookService.Domain.Models;
+
+#pragma warning disable CS8618 // Non-nullable property must contain a non-null value when exiting constructor. Consider declaring the property as nullable.
+
+/// <summary>
+/// Entity model that represents a record in a phonebook
+/// </summary>
+public class PhonebookRecord
+{
+	public int Id { get; set; }
+
+	public string Email { get; set; }
+
+	public string PhoneNumber { get; set; }
+
+	public string FirstName { get; set; }
+
+	public string LastName { get; set; }
+
+	public string StreetAddress { get; set; }
+
+	public string City { get; set; }
+
+	public string ZipCode { get; set; }
+}