ENGINES: ALL: Adapt to changes for new plugins by defining a new detection module

For each engine:
- Make a new folder detection
- Move detection-related files inside the folder
- Add a new module "enginename/detection"
- Add DETECT_OBJS here
- Adjust the normal engine module to remove detect_objs
- Adjust every file for the new changes.

engines/illusions/detection.cpp

@@ -1,134 +0,0 @@
-/* ScummVM - Graphic Adventure Engine
- *
- * ScummVM is the legal property of its developers, whose names
- * are too numerous to list here. Please refer to the COPYRIGHT
- * file distributed with this source distribution.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
-
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
-
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- */
-
-#include "engines/advancedDetector.h"
-
-#include "base/plugins.h"
-
-#include "illusions/detection_enums.h"
-#include "illusions/detection.h"
-
-static const PlainGameDescriptor illusionsGames[] = {
-	{ "bbdou", "Beavis and Butt-head Do U" },
-	{ "duckman", "Duckman" },
-	{ 0, 0 }
-};
-
-namespace Illusions {
-
-static const IllusionsGameDescription gameDescriptions[] = {
-	{
-		{
-			"bbdou",
-			0,
-			AD_ENTRY1s("000D0001.scr", "d0c846d5dccc5607a482c7dcbdf06973", 601980),
-			Common::EN_ANY,
-			Common::kPlatformWindows,
-			ADGF_UNSTABLE | ADGF_DROPPLATFORM,
-			GUIO0()
-		},
-		kGameIdBBDOU
-	},
-
-	{
-		{
-			"duckman",
-			0,
-			AD_ENTRY1s("duckman.gam", "172c0514f3793041718159cf9cf9935f", 29560832),
-			Common::EN_ANY,
-			Common::kPlatformWindows,
-			ADGF_DROPPLATFORM,
-			GUIO0()
-		},
-		kGameIdDuckman
-	},
-
-	{
-		{
-			"duckman",
-			"Demo",
-			AD_ENTRY1s("duckman.gam", "71d01e3f3d9d4e51cd69f71028745610", 7127040),
-			Common::EN_ANY,
-			Common::kPlatformWindows,
-			ADGF_DROPPLATFORM | ADGF_DEMO,
-			GUIO0()
-		},
-		kGameIdDuckman
-	},
-
-	{
-		{
-			"duckman",
-			0,
-			AD_ENTRY1s("duckman.gam", "64d16922ffb46b746fc2c12a14d75bcc", 29779968),
-			Common::DE_DEU,
-			Common::kPlatformWindows,
-			ADGF_DROPPLATFORM,
-			GUIO0()
-		},
-		kGameIdDuckman
-	},
-
-	{
-		{
-			"duckman",
-			0,
-			AD_ENTRY1s("duckman.gam", "a65f9b58427b3543882bddf36abe5878", 29564928),
-			Common::RU_RUS,
-			Common::kPlatformWindows,
-			ADGF_DROPPLATFORM,
-			GUIO0()
-		},
-		kGameIdDuckman
-	},
-
-	{AD_TABLE_END_MARKER, 0}
-};
-
-} // End of namespace Illusions
-
-static const char * const directoryGlobs[] = {
-	"resource",
-	0
-};
-
-class IllusionsMetaEngine : public AdvancedMetaEngine {
-public:
-	IllusionsMetaEngine() : AdvancedMetaEngine(Illusions::gameDescriptions, sizeof(Illusions::IllusionsGameDescription), illusionsGames) {
-		_maxScanDepth = 2;
-		_directoryGlobs = directoryGlobs;
-	}
-
-	const char *getEngineId() const override {
-		return "illusions";
-	}
-
-	const char *getName() const override {
-		return "Illusions";
-	}
-
-	const char *getOriginalCopyright() const override {
-		return "(C) The Illusions Gaming Company";
-	}
-};
-
-REGISTER_PLUGIN_STATIC(ILLUSIONS_DETECTION, PLUGIN_TYPE_METAENGINE, IllusionsMetaEngine);