Add license and settings overrides to LibationCli

- Add `LIBATION_FILES_DIR` environment variable to specify LibationFiles directory instead of appsettings.json
- OptionsBase supports overriding setting
  - Added `EphemeralSettings` which are loaded from Settings.json once and can be modified with the `--override` command parameter
- Added `get-setting` command
  - Prints (editable) settings and their values. Prints specified settings, or all settings if none specified
  - `--listEnumValues` option will list all names for a speficied enum-type settings. If no setting names are specified, prints all enum values for all enum settings.
  - Prints in a text-based table or bare with `-b` switch
- Added `get-license` command which requests a content license and prints it as a json to stdout
- Improved `liberate` command
  - Added `-force` option to force liberation without validation.
  - Added support to download with a license file supplied to stdin
  - Improve startup performance when downloading explicit ASIN(s)
  - Fix long-standing bug where cover art was not being downloading

Source/DataLayer/QueryObjects/LibraryBookQueries.cs

@@ -25,16 +25,17 @@ namespace DataLayer
 				.Where(c => !c.Book.IsEpisodeParent() || includeParents)
 				.ToList();
 
-        public static LibraryBook? GetLibraryBook_Flat_NoTracking(this LibationContext context, string productId)
-            => context
+        public static LibraryBook? GetLibraryBook_Flat_NoTracking(this LibationContext context, string productId, bool caseSensative = true)
+        {
+            var libraryQuery
+                = context
                 .LibraryBooks
                 .AsNoTrackingWithIdentityResolution()
-                .GetLibraryBook(productId);
+                .GetLibrary();
 
-        public static LibraryBook? GetLibraryBook(this IQueryable<LibraryBook> library, string productId)
-            => library
-                .GetLibrary()
-                .SingleOrDefault(lb => lb.Book.AudibleProductId == productId);
+            return caseSensative ? libraryQuery.SingleOrDefault(lb => lb.Book.AudibleProductId == productId)
+                : libraryQuery.SingleOrDefault(lb => EF.Functions.Collate(lb.Book.AudibleProductId, "NOCASE") == productId);
+		}
 
         /// <summary>This is still IQueryable. YOU MUST CALL ToList() YOURSELF</summary>
         public static IQueryable<LibraryBook> GetLibrary(this IQueryable<LibraryBook> library)