Replace stored-procedure repositories with Dapper-based repositories

Removes the USP_* stored procedures for Auth, Location, and Brewery
data access in favour of services built with Dapper.

Adds a new Features.Locations slice and optimistic concurrency support
for the Brewery slice.

web/backend/Infrastructure/Infrastructure.Sql/DependencyInjection/InfrastructureSqlServiceCollectionExtensions.cs

@@ -0,0 +1,12 @@
+using Microsoft.Extensions.DependencyInjection;
+
+namespace Infrastructure.Sql.DependencyInjection;
+
+public static class InfrastructureSqlServiceCollectionExtensions
+{
+    public static IServiceCollection AddInfrastructureSql(this IServiceCollection services)
+    {
+        services.AddSingleton<ISqlConnectionFactory, DefaultSqlConnectionFactory>();
+        return services;
+    }
+}