[PM-21075] Initial database seeder (#5703)

Adds a database seeder which can be used standalone using a CLI for seeding your local development environment, or used in unit tests to seed complex scenarios.

---------

Co-authored-by: Robert Y <rkac@bitwarden.com>

util/DbSeederUtility/GlobalSettingsFactory.cs

@@ -0,0 +1,34 @@
+using Bit.Core.Settings;
+using Microsoft.Extensions.Configuration;
+
+namespace Bit.DbSeederUtility;
+
+public static class GlobalSettingsFactory
+{
+    private static GlobalSettings? _globalSettings;
+
+    public static GlobalSettings GlobalSettings
+    {
+        get { return _globalSettings ??= LoadGlobalSettings(); }
+    }
+
+    private static GlobalSettings LoadGlobalSettings()
+    {
+        Console.WriteLine("Loading global settings...");
+
+        var configBuilder = new ConfigurationBuilder()
+            .SetBasePath(Directory.GetCurrentDirectory())
+            .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
+            .AddJsonFile($"appsettings.{Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT") ?? "Production"}.json", optional: true, reloadOnChange: true)
+            .AddUserSecrets("bitwarden-Api") // Load user secrets from the API project
+            .AddEnvironmentVariables();
+
+        var configuration = configBuilder.Build();
+        var globalSettingsSection = configuration.GetSection("globalSettings");
+
+        var settings = new GlobalSettings();
+        globalSettingsSection.Bind(settings);
+
+        return settings;
+    }
+}