Adminotech VC9 & VC10 Win64 support

Fixes #427 

64-bit Tundra on Windows tested, built and run successfully using both VS2008 and VS2010 with <b>Boost disabled</b>.

<b>Note/todo:</b> OGG playback not working properly (audio output is distorted static noise) in RelWithDebInfo build (works just fine in Debug). However this problem has been noticed also on 32-bit builds occasionally, although very rarely.

<b>Note:</b> It would appear that when doing a 64-bit VC9 build, some of the dependencies (protobuf at least) can fail on command line. As a workaround, one should be able to build these dependencies just fine using the VS IDE.

<b>Note:</b> After this pull request, the "deps" directory is used only for 32-bit VC9-built deps. All other build configuration variant deps are placed to "deps-%VS_VER%-%TARGET_ARCH%". f.ex. "deps-vs2010-x86". So, if you have already build 32-bit dependencies with VS 2010, remember to rename the "deps" dir to "deps-vs2010-x86", or otherwise the fullbuild script will start building the dependencies from scratch the next time it is invoked.

<b>IMPORTANT: If you have installed VS x64 tools after installing VS SP1 make sure you re-apply the VS SP1 installation before building Tundra and its dependencies as 64-bit! </b>