Unbreak the build on OSX by defining Initialize() and Terminate() for the Windows platform plugin



git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@192724 91177308-0d34-0410-b5e6-96231b3b80d8
string.h and clang headers are apparently no longer necessary for SBType to compile

git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@192725 91177308-0d34-0410-b5e6-96231b3b80d8