I also took the liberty of changing the library name from libopenjpeg-dotnet-2.1.3.0-dotnet-1*.so to libopenjpeg-dotnet-2-1.5.0-dotnet-1*.so
To me, "2.1.3.0" looked like a full version number whereas it is really "2" and libopenjpeg "1.3.0"
Not sure what the "2" is, maybe dotnet 2
However, it might be better to get rid of this version information altogether - after all the openjpeg-dotnet.dll libraries do not have it