New: correct default quota coscine/issues#1425

coscine/issues#1425
coscine/issues#1414

src/Migrations/Migrations/Migration202104221020RemoveQuotaDefault.cs

+using FluentMigrator;
+
+namespace Coscine.Migrations.Migrations
+{
+    //yyyymmddhhmm
+    [Migration(202104221020)]
+    public class Migration202104221020RemoveQuotaDefault : Migration
+    {
+        public override void Down()
+        {
+            Alter.Column("Quota").OnTable("ProjectQuotas").AsInt32().NotNullable().WithDefaultValue(25);
+        }
+
+        public override void Up()
+        {
+            Alter.Column("Quota").OnTable("ProjectQuotas").AsInt32().NotNullable().WithDefaultValue(0);
+        }
+    }
+}