[PATCH v3 0/5] MR4375: dmsynth: Various fixes 2

[Anton Baskanov (＠baskanov)]

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  v3: dmsynth: Use FLUID_MOD_KEY for CONN_SRC_KEYNUMBER.
      dmsynth: Fall back to the Standard drum set when there is no matching instrument or region.
      dmsynth: Factor out instrument and region search.
      dmsynth: Get rid of instrument reference counting.
      dmsynth: Move instrument search to synth_preset_noteon().

https://gitlab.winehq.org/wine/wine/-/merge_requests/4375