First major version of the project

This finishes the first iteration of the project. Reports have been
tested and are functional in terms of writing out and outputting some
form of text. There are still a few bugs here and there that are found
but ultimately this commit is so testing can begin.

Since the changes are too large to individually summarize, here is the
generalization:

Reports have been integrated into the admin mode. They write out to text
files rather than export to say email or a printer as it was not to be
considered for this version. The files are appended too and exist in the
debug director of the project. I made this easier to find by outputting
where the files were output to after running the report.

Other changes included some bug fixes, optimizations, and a few bit of
automatic cleanup. This may lead to sylistic inconsistencies.

Documentation will come in a later commit.

OpheliasOasis/Reporting/Accommodation.cs

@@ -0,0 +1,20 @@
+using Ophelias.Models;
+namespace Ophelias.Reporting
+{
+    internal static class Accommodation
+    {
+        internal static void GenerateAccommodationBills(List<Reservation> reservations)
+        {
+            foreach (Reservation? r in reservations)
+            {
+                string report = $"ACCOMMODATION BILL - GENERATED ON {DateTime.Now.Date.ToString("yyyy-MM-dd")}\n" +
+                    $"Name: {r.Guest.LastName}, {r.Guest.FirstName}\n" +
+                    $"Arrival Date: {r.StartDate}\n" +
+                    $"Departure Date: {r.EndDate}\n" +
+                    $"Length of Stay: {(int)(r.EndDate.Date - r.StartDate.Date).TotalDays} days\n" +
+                    $"Charged: ${r.Transaction.Owed}\n\n";
+                File.AppendAllText(Path.GetFullPath("AccommodationBills.txt"), report);
+            }
+        }
+    }
+}