Bind output size during decompression

[gbrovman]

During decompression, before writing the garbage data, bind the output to match the file plain text size. While this logic usually does nothing and seems unneeded, it matches the Lepton C++ implementation and solves a back-compat case for a JPEG file with trailing restarts that were missing in the original JPG.

[gbrovman]

Abandoning in a favor of Kristof's alternative solution