Co-Authored-By: dantoml <dani@tomlinson.io>

Co-Authored-By: dantoml <dani@tomlinson.io>

Due to https://github.com/tsenart/deadcode/issues/3 we can't specify
these consts on their own. This moves them into the _platform_test.go
files to avoid creating a package that only exposes a couple of values.

* Docker for Windows does not support ulimits
* Use filepath.ToSlash to test workdir
* Convert expected mount paths to system style
* Skip security-opt test on windows
  - Windows does not support seccomp, and it's unclear which options are
    available.
* Skip StartN due to lack of sigint
* docker: Use api to get image info on windows
* No bridge on windows
* Stop hardcoding /bin/

Uses the home directory and windows path expansion, as c:\tmp doesn't
necessarily exist, and mktemp would involve unnecessarily complicating
the commands.

This validates the slash variant of a RelativeDest, rather than the
platform native version, to support test execution on windows.

This is a workaround for the windows process model.

Go os/exec does not pass the parent process handle to the child
processes STARTUPINFO struct, this means that unless we wait in
the _same_ execution context as Starting the process, the
handle will be lost, and we cannot kill it without regaining
a handle.

A better long term solution would be a higher level process
abstraction that uses windows.CreateProcess on windows.

When vault is installed through chocolatey, it also installs a shim that
will not pass kill signals to the child. This means the process will
never actually terminate, and we lose the process handle.

Here, rather than waiting forever, we timeout fast.

Update shirou/gopsutil dep to use non-GPL code

Previously used `github.com/shirou/gopsutil`[1], used some GPL code [2].
This was somewhat unintentional, and was addressed later [3].

Due to being late in the cycle of Nomad release when this is noticed,
and time elapsed since we updated the dependency, we want to be
conservative in our package updates.

As such, we opted to go with forking the repo to use the previously used
version with the GPL removal code commit, done in [4].

[1] https://github.com/shirou/gopsutil/commit/5776ff9c7c5d063d574ef53d740f75c68b448e53
[2] https://github.com/shirou/gopsutil/blob/5776ff9c7c5d063d574ef53d740f75c68b448e53/host/include/smc.c
[3] https://github.com/shirou/gopsutil/commit/c95755e4bcd7a62bb8bd33f3a597a7c7f35e2cf3
[4] https://github.com/shirou/gopsutil/commits/62d5761ddb7d04fc475d6316c79ff0eed1e5f96b

rkt: revert to pre-0.9 --cpu flag

Make driver logging less redundant

logmon: Reattach to existing loggers