adding hidden basic asp.net core backend (#30)

Base functionality:

    DB
    email sending
    user registration & login
    storing new characters and reading them back

Notes:

    Functionality is "hidden" with no links pointing to it.
    Most pages are scaffolded and not reviewed at all :(
    local Dev db setup is pushed to git
    NO local email setup :(

Kemkas.Web/Db/ApplicationDbContext.cs

@@ -0,0 +1,24 @@
+using Kemkas.Web.Db.Models;
+using Microsoft.AspNetCore.DataProtection.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.AspNetCore.Identity.EntityFrameworkCore;
+
+namespace Kemkas.Web.Db;
+
+public class ApplicationDbContext : IdentityDbContext<ApplicationUser, ApplicationRole, int>, IDataProtectionKeyContext
+{
+    public ApplicationDbContext(DbContextOptions options) : base(options)
+    {
+    }
+    
+    public DbSet<DataProtectionKey> DataProtectionKeys { get; set; }
+    
+    public DbSet<V1Karakter> Karakterek { get; set; }
+    
+    public DbSet<V1KarakterKepzettseg> KarakterKepzettsegek { get; set; }
+    
+    public DbSet<V1Szintlepes> Szintlepesek { get; set; }
+    
+    public DbSet<V1Felszereles> Felszerelesek { get; set; }
+    
+}