fix(cmakelists): Improve CMakeLists.txt

[myd7349]

• Fix MSVC build failure caused by unsupported compiler flags MSVC doesn't support /Wpedantic, 'Werror' flag:

  mkdir build
  cd build
  cmake ..
  cmake --build .

  cl : Command line error D8021: invalid numeric argument '/Wpedantic' [C:\Users\vcpkg\Desktop\argtable3\build\src\argtable3.vcxproj] cl : Command line error D8021: invalid numeric argument '/Wextra' [C:\Users\vcpkg\Desktop\argtable3\build\src\argtable3.vcxproj]

• Install DLL file into bin on Windows CMake recommands us to install DLL files into bin directory: https://cmake.org/cmake/help/latest/command/install.html
• Set INTERFACE_INCLUDE_DIRECTORIES properly
• Do not build tests when ARGTABLE3_ENABLE_TESTS is OFF
• Discard ARGTABLE3_INSTALL_LIBDIR, ARGTABLE3_INSTALL_INCLUDEDIR GNUInstallDirs module is also available on Windows, so use CMAKE_INSTALL_LIBDIR, CMAKE_INSTALL_INCLUDEDIR instead.

[tomghuang]

@myd7349 Thanks a lot for you pull request. I've learned some CMake tricks from you.