Fix casing of filenames and code in plugins/ (#6350)

No functional changes! No changes to savefiles/presets!

Fixes casing of everything that is currently lowercase but should
be uppercase.

Fixes also some other plugin strings, especially:

* opl2 -> OpulenZ (see 289887f4fc)
* calf -> veal (see ae291e0709)
* ladspa_effect -> LadspaEffect (see 9c9372f0c8)
* remove flp_import (see 2d1813fb64)

plugins/DynamicsProcessor/DynamicsProcessorControlDialog.h

@@ -0,0 +1,49 @@
+/*
+ * DynamicsProcessorControlDialog.h - control-dialog for DynamicsProcessor-effect
+ *
+ * * Copyright (c) 2014 Vesa Kivimäki <contact/dot/diizy/at/nbl/dot/fi>
+ * Copyright (c) 2006-2008 Tobias Doerffel <tobydox/at/users.sourceforge.net>
+ *
+ * This file is part of LMMS - https://lmms.io
+ *
+ * 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 (see COPYING); if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301 USA.
+ *
+ */
+
+#ifndef DYNPROC_CONTROL_DIALOG_H
+#define DYNPROC_CONTROL_DIALOG_H
+
+#include "EffectControlDialog.h"
+
+
+class DynProcControls;
+
+
+class DynProcControlDialog : public EffectControlDialog
+{
+	Q_OBJECT
+public:
+	DynProcControlDialog( DynProcControls * _controls );
+	virtual ~DynProcControlDialog()
+	{
+	}
+
+
+private:
+
+} ;
+
+#endif