Optionally blanket ignore midi program change

Since most of the time it won't do what you want if it does arrive
make it an opt out. Keep the behavior unchanged though to 1.1 so
we don't break people who had engineeredf around the deficiencies

Closes surge-synthesizer#6803

src/common/SurgeSynthesizer.cpp

@@ -1839,6 +1839,12 @@ void SurgeSynthesizer::polyAftertouch(char channel, int key, int value)
 
 void SurgeSynthesizer::programChange(char channel, int value)
 {
+    auto ignorePC = Surge::Storage::getUserDefaultValue(
+        &(storage), Surge::Storage::IgnoreMIDIProgramChange, false);
+
+    if (ignorePC)
+        return;
+
     PCH = value;
     // load_patch((CC0<<7) + PCH);
     patchid_queue = (CC0 << 7) + PCH;

src/common/UserDefaults.cpp

@@ -282,6 +282,10 @@ std::string defaultKeyToString(DefaultKey k)
         r = "focusModEditorAfterAddModulationFrom";
         break;
 
+    case IgnoreMIDIProgramChange:
+        r = "ignoreMidiProgramChange";
+        break;
+
     case nKeys:
         break;
     }

src/common/UserDefaults.h

@@ -127,6 +127,8 @@ enum DefaultKey
     FXUnitAssumeFixedBlock,
     FXUnitDefaultZoom,
 
+    IgnoreMIDIProgramChange,
+
     nKeys
 };
 

src/surge-xt/gui/SurgeGUIEditor.cpp

@@ -4641,6 +4641,16 @@ juce::PopupMenu SurgeGUIEditor::makeMidiMenu(const juce::Point<int> &where)
                             [this, p] { this->synth->storage.loadMidiMappingByName(p.first); });
     }
 
+    midiSubMenu.addSeparator();
+    bool igMID = Surge::Storage::getUserDefaultValue(
+        &(this->synth->storage), Surge::Storage::IgnoreMIDIProgramChange, false);
+
+    midiSubMenu.addItem(
+        Surge::GUI::toOSCase("Ignore MIDI Program Change Messages"), true, igMID, [this, igMID]() {
+            Surge::Storage::updateUserDefaultValue(&(this->synth->storage),
+                                                   Surge::Storage::IgnoreMIDIProgramChange, !igMID);
+        });
+
     return midiSubMenu;
 }