Added interfaces to read and write data in DB and added DbContext implementing these

SchengenVisaApi/Infrastructure/Database/Configuration/VisaApplication/ReentryPermitConfiguration.cs

@@ -0,0 +1,16 @@
+using Domains.VisaApplicationDomain;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Infrastructure.Database.Configuration.VisaApplication
+{
+    public class ReentryPermitConfiguration : IEntityTypeConfiguration<ReentryPermit>
+    {
+        public void Configure(EntityTypeBuilder<ReentryPermit> entity)
+        {
+            entity.Property(p => p.Number)
+                .IsUnicode(false)
+                .HasMaxLength(25);
+        }
+    }
+}