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/Vibed/StringContainer.cpp

@@ -0,0 +1,102 @@
+/*
+ * StringContainer.cpp - contains a collection of strings
+ *
+ * Copyright (c) 2006 Danny McRae <khjklujn/at/yahoo/com>
+ * 
+ * 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.
+ *
+ */
+
+#include "StringContainer.h"
+
+
+StringContainer::StringContainer(const float _pitch, 
+				const sample_rate_t _sample_rate,
+				const int _buffer_length,
+				const int _strings ) :
+	m_pitch( _pitch ),
+	m_sampleRate( _sample_rate ),
+	m_bufferLength( _buffer_length )
+{
+	for( int i = 0; i < _strings; i++ )
+	{
+		m_exists.append( false );
+	}
+}
+
+
+
+
+void StringContainer::addString(int _harm,
+				const float _pick,
+				const float _pickup,
+				const float * _impulse,
+				const float _randomize,
+				const float _string_loss,
+				const float _detune,
+				const int _oversample,
+				const bool _state,
+				const int _id )
+{
+	float harm;
+	switch( _harm )
+	{
+		case 0:
+			harm = 0.25f;
+			break;
+		case 1:
+			harm = 0.5f;
+			break;
+		case 2:
+			harm = 1.0f;
+			break;
+		case 3:
+			harm = 2.0f;
+			break;
+		case 4:
+			harm = 3.0f;
+			break;
+		case 5:
+			harm = 4.0f;
+			break;
+		case 6:
+			harm = 5.0f;
+			break;
+		case 7:
+			harm = 6.0f;
+			break;
+		case 8:
+			harm = 7.0f;
+			break;
+		default:
+			harm = 1.0f;
+	}
+
+	m_strings.append( new VibratingString(	m_pitch * harm,
+						_pick, 
+						_pickup,
+						const_cast<float*>(_impulse),
+						m_bufferLength,
+						m_sampleRate,
+						_oversample,
+						_randomize,
+						_string_loss,
+						_detune,
+						_state ) );
+	m_exists[_id] = true;
+}