Merge branch 'master' of https://github.com/tildearrow/furnace into x1_010

# Conflicts:
#	CMakeLists.txt
#	papers/doc/7-systems/README.md
#	src/engine/dispatch.h
#	src/engine/dispatchContainer.cpp
#	src/engine/playback.cpp
#	src/engine/sysDef.cpp
#	src/gui/gui.cpp

src/engine/sysDef.cpp

@@ -1636,6 +1636,7 @@ bool DivEngine::isVGMExportable(DivSystem which) {
     case DIV_SYSTEM_OPLL_DRUMS:
     case DIV_SYSTEM_VRC7:
     case DIV_SYSTEM_X1_010:
+    case DIV_SYSTEM_SWAN:
       return true;
     default:
       return false;