NaCl MemLeaks

[rennergade]

@yizhuoliang started to fix the few memory leaks we had in NaCl with this PR but it needs some cleanup/possibly some additions.

I think this is a good issue for @rupeshkoushik07 who can complete this with supervision from @yizhuoliang .

@yzhang71 can you possibly also give them a quick tutorial on how you analyzed Lind for memory leaks?

[yzhang71]

Yeah. I have met with Rupesh and provide him with the documents about Memory Leak that ASan detected. He is currently working on fixing them.