Refactor EF Core migrations and add SQLite support

Updated `Migrators.MSSQL.csproj` to include new migration folders for better organization. Removed initial migration files (`20220427213719_initial.Designer.cs` and `20220427213719_initial.cs`) and model snapshots for `ApplicationDbContext` and `TenantDbContext`, indicating a shift in migration strategy.

Introduced new SQLite migration `InitialCreate` to set up schemas for `Auditing`, `Catalog`, and `Identity`. Added tables for `AuditTrails`, `Brands`, `Products`, and various identity-related entities with necessary constraints and indexes.

Added new model snapshots for `ApplicationDbContext` and `TenantDbContext`, including multi-tenancy support and schema definitions for `Brand`, `Product`, `Trail`, and identity-related entities.

src/template/src/Migrators/Migrators.MSSQL/Migrators.MSSQL.csproj

@@ -7,5 +7,8 @@
     <ItemGroup>
         <ProjectReference Include="..\..\Infrastructure\Infrastructure.csproj" />
     </ItemGroup>
-
+    <ItemGroup>
+        <Folder Include="Migrations\Application\" />
+        <Folder Include="Migrations\Tenant\" />
+    </ItemGroup>
 </Project>