add install for windows

INSTALL_WINDOWS.md

+# Windows installation
+
+``` bash
+> python -m pip install --upgrade pip
+
+> pip list
+Package    Version
+---------- -------
+pip        19.1
+setuptools 40.8.0
+
+> pip list --user
+
+> pip install pylint
+> pip install toml
+> pip install netCDF4
+> pip install matplotlib
+> pip install numpy
+> pip install seawater
+> pip install PyInstaller
+> pip install ConfigParser
+```
+
+Installing basemap on Windows from source could be tricky. A simple solution is to install the .whl binary from the URL:
+https://www.lfd.uci.edu/~gohlke/pythonlibs/
+
+file `basemap-1.2.0-cp37-cp37m-win_amd64.whl`
+
+``` bash
+> pip install basemap-1.2.0-cp37-cp37m-win_amd64.whl
+```
+
+Clone the latest version of PySimpleGUI
+
+``` bash
+> git clone https://github.com/PySimpleGUI/PySimpleGUI.git 
+```
+
+and add the path of PySimpleGUI directory to $PYTHONPATH env
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