[Constants, Skippers/, Tools/] Fix header extract

Use full paths in the name of the database to avoid output folder issues during script runs and make sure that Skippers are created with the absolute bare minimum set.

SabreTools.Library/Tools/DatabaseTools.cs

@@ -67,7 +67,6 @@ namespace SabreTools.Library.Tools
 			type = type.ToLowerInvariant();
 
 			// Make sure the file exists
-			db = Path.Combine(Globals.ExeDir, db);
 			if (!File.Exists(db))
 			{
 				SqliteConnection.CreateFile(db);