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/Areas/Identity/Pages/Account/Logout.cshtml

@@ -0,0 +1,21 @@
+@page
+@model LogoutModel
+@{
+    ViewData["Title"] = "Log out";
+}
+
+<header>
+    <h1>@ViewData["Title"]</h1>
+    @{
+        if (User.Identity?.IsAuthenticated ?? false)
+        {
+            <form class="form-inline" asp-area="Identity" asp-page="/Account/Logout" asp-route-returnUrl="@Url.Page("/", new { area = "" })" method="post">
+                <button type="submit" class="nav-link btn btn-link text-dark">Click here to Logout</button>
+            </form>
+        }
+        else
+        {
+            <p>You have successfully logged out of the application.</p>
+        }
+    }
+</header>