Build Script: Revised for Windows
Build Script: Revised for Windows

- Fixed typo (ICU_UC_LIBRARIES -> ICU_UC_LIBRARY, etc)
- Changed the order for some steps

tinysun212/swift-windows,tinysun212/swift-windows,tinysun212/swift-windows,tinysun212/swift-windows,tinysun212/swift-windows,tinysun212/swift-windows,tinysun212/swift-windows