LINK FLAGS "-z now" throws an error when cross-compiling

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I was using `cmake-js` in conjunction with `cmake-node-module` to cross-compile node modules for windows from linux. However at line number 178 of `module.cmake` the `LINK_FLAGS` "-z now" turns out to be invalid option for the linker `x86_64-w64-mingw32-ld`. I get the following output,

```bash
# Running the following command from a CMakeLists file dir to build the node modules
cmake-js compile --CDCMAKE_TOOLCHAIN_FILE=

# The configuring and generating are successful, and build files are written successfully.
# However, in the subsequent linking step I get the following output.
Scanning dependencies of target hello-world-native.abi-93
[ 3%] Building CXX object CMakeFiles/hello-world-native.abi-93.dir/src/hello_world.cpp.obj
[ 6%] Linking CXX shared library hello-world-native.abi-93.node
/usr/bin/x86_64-w64-mingw32-ld: unrecognized option '-z'
/usr/bin/x86_64-w64-mingw32-ld: use the --help option for usage information
collect2: error: ld returned 1 exit status
make[2]: *** [CMakeFiles/hello-world-native.abi-93.dir/build.make:106: hello-world-native.abi-93.node] Error 1
make[1]: *** [CMakeFiles/Makefile2:131: CMakeFiles/hello-world-native.abi-93.dir/all] Error 2
make: *** [Makefile:103: all] Error 2
ERR! OMG Process terminated: 2
```

Inspect module.cmake at line 178 and reproduce the cross-compilation command using the provided CMake toolchain file. Check how the LINK_FLAGS setting reaches the x86_64-w64-mingw32 linker, then verify that the hello-world-native.abi-93 target links successfully without the unsupported option.

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