This is based on Kasamir123's pull request at
0vercl0k#102 plus some scripts in snapchange for
automatically setting up a Linux VM target.

The following improvements have been made as compared to Kasamir123's original
pull request:

* Fixed bug when calling mlockall, allowing us to remove page touching code
* Code requires no custom #ifdefs in wtf
* Linux snapshots work w/fuzzing via KVM. Kasamir123's code had some issues with
  gathering segment registers, and our updates fix these issues, allowing for
  KVM support
* Kasamir123's code injects shellcode into the target process by overwriting
  code, but never restored the original code. We now restore the original code
* Snapshotting is more streamlined, only taking a few manual steps once
  everything is configured
* Some improvements from 0vercl0k's suggestions from ELF Snapshotting and
  Fuzzing 0vercl0k#102, like implementing raw2dmp in Python
* Support for setting breakpoints on symbols in ELF targets plus use of symbols
  in fuzz harnesses
* IDA script for generating coverage breakpoints list so that targets can be
  fuzzed with KVM
* Target VM can run with HW acceleration enabled, Kasamir123's scripts for
  running the VM and taking a snapshot only worked with SW emulation
* Works with recent Linux kernel versions

0vercl0k#192

…ot into linux-snapshot