climaemet

rename ggstripes_station() to climatestripes_station().

climatogram_normal(). New function to plot a Walter & Lieth climatic diagram from normal climatology values.

climatogram_period(). New function to plot a Walter & Lieth climatic diagram for a specified time period.

ggwindrose(). New function to plot windrose diagram.

windrose_days(). New function to plot a windrose (speed/direction) diagram of a station over a days period.

windrose_period(). New function to plot a windrose (speed/direction) diagram of a station over a time period.