[BUG]: Fix receiver buffer realloc issue

[okawo80085]

Our lazy-socket receiver class has an issue with it's internal receive buffer where it can smash heap after a realloc, because right now it's done with an almost raw buffer by calling realloc().
Switching to one of the STL containers for managing memory will be ideal.

[okawo80085]

Scratch that, its not smashing the heap, it's just leaking memory x)

[okawo80085]

Note: this was just a memory leak fix, it is not using an STL container internally yet.

[okawo80085]

Weeeeeeeeeeeeeeeeeeeeeeeeell, turns out that temporary fix results in a segfault in runtime of our driver (which was a real pain to find :L )

[okawo80085]

So yeah, time to make a proper fix and use an STL container for buffer management instead