Expansion of Cinder's user-config for building libraries for tvos.

## user-config.jam
using clang : osx
: xcrun clang -arch i386 -arch x86_64 -stdlib=libc++ -std=c++11 -mmacosx-version-min=10.8 -fvisibility-inlines-hidden
;

using clang : ios
: xcrun clang -arch armv7 -arch arm64 -stdlib=libc++ -std=c++11 -miphoneos-version-min=6.0 -fvisibility-inlines-hidden -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS9.0.sdk/
;

using clang : ios_sim
: xcrun clang -arch i386 -arch x86_64 -stdlib=libc++ -std=c++11 -miphoneos-version-min=6.0 -fvisibility-inlines-hidden -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator9.0.sdk/
;

using clang : tvos
: xcrun clang -arch arm64 -stdlib=libc++ -std=c++11 -mtvos-version-min=9.0 -fembed-bitcode -fvisibility-inlines-hidden -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS9.2.sdk/
;

using clang : tvos_sim
: xcrun clang -arch i386 -arch x86_64 -stdlib=libc++ -std=c++11 -mtvos-version-min=9.0 -fvisibility-inlines-hidden -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/AppleTVSimulator.platform/Developer/SDKs/AppleTVSimulator9.2.sdk/
;