Adds WinDivert support to Windows builds

Adds WinDivert support to Windows builds

Enables IPS functionality on Windows using the open-source
(LGPLv3/GPLv2) WinDivert driver and API.

From https://www.reqrypt.org/windivert-doc.html : "WinDivert is a
user-mode capture/sniffing/modification/blocking/re-injection package
for Windows Vista, Windows Server 2008, Windows 7, and Windows 8.
WinDivert can be used to implement user-mode packet filters, packet
sniffers, firewalls, NAT, VPNs, tunneling applications, etc., without
the need to write kernel-mode code."

- adds `--windivert [filter string]` and `--windivert-forward [filter
    string]` command-line options to enable WinDivert IPS mode.
    `--windivert[-forward] true` will open a filter for all traffic. See
    https://www.reqrypt.org/windivert-doc.html#filter_language for more
    information.

Limitation: currently limited to `autofp` runmode.

Additionally:
- `tmm_modules` now zeroed during `RegisterAllModules`
- fixed Windows Vista+ `inet_ntop` call in `PrintInet`
- fixed `GetRandom` bug (nonexistent keys) on fresh Windows installs
- fixed `RandomGetClock` building on Windows builds
- Added WMI queries for MTU