CYBERDEViL/LMMS: Fork of https://github.com/lmms/lmms for development. Will update the `master` branch so now and then. Custom branches: [pattern_dnd] @ fix-ds-env

Hyunjin Song 2367a62a51 Fix crashes and hangs on importing some Hydrogen drum kit songs (#5420)		4 lat temu
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CMakeLists.txt	0acfff036f Added HydrogenImport plugin	12 lat temu
HydrogenImport.cpp	2367a62a51 Fix crashes and hangs on importing some Hydrogen drum kit songs (#5420)	4 lat temu
HydrogenImport.h	4cee046909 Added initial Qt5 support	10 lat temu
LocalFileMng.h	0acfff036f Added HydrogenImport plugin	12 lat temu
local_file_mgr.cpp	0acfff036f Added HydrogenImport plugin	12 lat temu