Added the Wind Speed Svg Icon

[Mayank-Khurmai]

/* Css Code for wind-speed.svg */

.wind-speed { width: 1em; height: 1em; }

.wind-speed path, .wind-speed polygon, .wind-speed rect { fill: #4691f6; }

.wind-speed circle { stroke: #4691f6; stroke-width: 1; }