Adding Features to malloc_playground remade #192
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This pr correct some bugs i discovered in a previously opened PR (id: #175)
By working on binexp, i thought it would be very useful to be able to see all allocated chunks and their pointers.
I also implemented a feature allowing user to add some datas to allocated chunks.
Also changed the sscanf to allow arg1 to be a str and not only an intptr.
Also added and arg2 for write.
-> write : allow user to write a str to specified chunk
-> listp : list all allocated chunk, their address and value
-> listpall: print list of chunks, even if some are not allocated
-> clearlist: clear list containing allocated chunks content and their address (set everything to 0)