feat(*): Update 2021-06 files (part 1 working, part 2 not I think, but unable to test on laptop due to CPU limitations)

This resolves the out of memory issue, but still takes too long to run. It's either CPU or IO bound.

2021/06/Migrations/20211206123902_InitialCreate.Designer.cs

@@ -0,0 +1,37 @@
+// <auto-generated />
+using Day06;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace _06.Migrations
+{
+    [DbContext(typeof(FishContext))]
+    [Migration("20211206123902_InitialCreate")]
+    partial class InitialCreate
+    {
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "6.0.0");
+
+            modelBuilder.Entity("Day06.Fish", b =>
+                {
+                    b.Property<int>("FishId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("InternalTimer")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("FishId");
+
+                    b.ToTable("Fishes");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}