Assorted fixes for FreeBSD hosts, VBox compiles and runs again without further patches (tested on 10.1 amd64 )

HostDrivers/Support: fix the Linux modules

SUPDrv.c -> SUPDrv.cpp; SUPDrvSem.c -> SUPDrvSem.cpp

SUPDrv: Split out the GIP related code into SUPDrvGip.cpp.

SUP,IPRT: Started as a build fix ended up as a cleanup (mostly untested as I'm windows). We'll keep SUP_IOCTL_TSC_READ for the purpose of dealing with the i64TSCDelta == INT64_MAX in SUPReadTsc/SUPReadTscWithDelta. Moved the excessive inline code from sup.h to SUPLibAll.cpp (new file) and SUPDrv.c (apply delta). Don't bother too much about trying to share code between SUPLibAll.cpp and SUPDrv.c/++ as the SUPReadTsc[WithDelta] scenario does not care about knowing when things goes bad, it just needs a TSC that is as good as we can get. The SUPDrv.c code on the other hand probably needs other kind of status codes, assertions and whatnot to be better off with its own version of the code. Remove the now unused assembly macro for applying the delta - the way the delta is applied will not change, period, so better just document it instead.

HostDrivers/support: freebsd fix.

IPRT: Kernel thread-context hooks, linux implementation. Extended tstR0ThreadPreemption testcase to test the thread-context hooks.

VMM: HM cleanup

FreeBSD: Fix debug build of kernel module (thanks to Bernhard Froehlich)

FreeBSD: Fix building the kernel module

SUPDrv: tracing infastructure coding...

Moved VBox/x86.h/mac to iprt/x86.h/mac.

IRPT: Adding RTErrVarsSave/Restore/++ to preserve errno, h_error/WSAGetLastError and GetLastError accross assertions.

Fix FreeBSD host drivers

log rotation review and adjustments: Don't delete any excess files if log roation is disabled - we don't know what these files might be. Moved RTLOGGERFILE into log.c. Keep RTLogCreate simple, anyone needing rotation can use RTLogCreateEx[V]. Made RTLogGetDestinations produce the log rotation bits.

GIP,++: Lots of CPUs (disabled).

IPRT,Drivers: Committed a modified version of the diff_linux_guest_host patch. This mangles the IPRT symbols in kernel space on linux and later other platforms.

VMM reorg: Moving the public include files from include/VBox to include/VBox/vmm.

FreeBSD: Implement RTSemEvent{|Multi}WaitEx

FreeBSD: build fixes (thanks to Bernhard Froehlich)

VMM,SUPDrv,IPRT: More changes for related to the priodic preemption timer. (still disabled)

iprt: removed crc32.h and crc64.h, use crc.h instead.

FreeBSD: build fix

IPRT,SUP: Moved the strformat*.cpp completely out of RuntimeR0 on all platforms so that %RT[pgmpage] will work in ring-0. Minor SUPDrv IOC interface version increment.

iprt/asm*.h: split out asm-math.h, don't include asm-*.h from asm.h, don't include asm.h from sup.h. Fixed a couple file headers.

files_*: iprt/asm-amd64-x86.h

semmutex-r0drv-freebsd.c: A quick sketch, very incomplete though and needs some serious work. Probably doesn't even compile.

HostDrivers/FreeBSD: Build fixes

*: The rest of the %V* format specifiers are history.

iprt/assert.h: Added RTAssertMsg2Add[Weak][V] for dumping the lock deadlock chain and stacks. Added the missing internal/assert.h file to the linux and freebsd kernel source trees.

files_*,Makefile: s/RTAssertMsg2V/RTAssertMsg2/

IPRT,SUPDrv,++: AssertMsg[12] -> AssertMsg1Weak, AssertMsg1, AssertMsg2Weak, AssertMsg2, AssertMsg2WeakV and AssertMsg2V. Doing more of the assertion machinery in common/misc/assert.cpp to avoid code duplication (ring-0). Major SUPDrv version bump.

HostDrivers/Support/FreeBSD: Install missing header

SUPDrv,++: Made SUPDrv.c platform agnostic and renamed SUPDrvAgnostic.c to SUPDrvSem.c. dprintf and dprintf2 are no more (Log/Log2), while OSDBGPRINT simply calls SUPR0Printf.

IPRT,PDMCritSect: Lock validation can only be performed in ring-3; fixed #PF on 32-bit darwin with debug builds. Hopefully fixed the recursion issue on windows.

IPRT: Three new format types: %RTmac, %RTnaipv4 and %RTnapiv6.

SUPDrv: Started splitting out platform agonstic code to avoid clashes with kernel headers (linux + silly ES #define).

HostDriver/Support/linux: Copy used header files for SUPR0QueryVTCaps. Fix kernel module build

HostDrivers/FreeBSD: Use the same method to build the kernel drivers as Linux. To build the kernel drivers go into out/freebsd.{amd64,x86}/{release,debug}/bin/src after the build and execute make. make load will load the kernel drivers. The old way is only used for syntax checking and the resulting modules may not even load anymore.