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/ViewModels/KarakterFelszerelesDto.cs

@@ -0,0 +1,15 @@
+using System.Text.Json.Serialization;
+
+namespace Kemkas.Web.ViewModels;
+
+public struct KarakterFelszerelesDto
+{
+    [JsonPropertyName("pancelID")]
+    public string? PancelId { get; set; }
+    
+    [JsonPropertyName("pajzsID")]
+    public string? PajzsId { get; set; }
+    
+    [JsonPropertyName("fegyverIDk")]
+    public IList<string> FegyverIds { get; set; }
+}