U++

patch:
ide/Core/Core.h, line 509 : add ENC_LZ4 to the enum:

        enum {
            ENC_PLAIN,
            ENC_ZIP,
            ENC_BZ2,
            ENC_LZ4,
        };

ide/Core/BinObj.cpp, Line 37, Add this block "else if":

  else if(binscript.Id("LZ4"))
    blk.encoding = Block::ENC_LZ4;

ide/Core/Core.cpp
add this "case" at lines 466 & 506:

  case BinObjInfo::Block::ENC_LZ4: data = LZ4Compress(data); break;

#include <plugin/lz4/lz4.h>

finally, in order to simplify decompression, add this util overload in:
plugin/lz4/lz4:

String LZ4Decompress(Stream& in, Gate<int64, int64> progress)
{
    StringStream out;
    LZ4Decompress(out, in, progress);
    return out;
}