Implement wordSpacing in extractFont

lib/attributes.js

@@ -25,6 +25,7 @@ function fontDiffer(a, b) {
         a.fontStyle !== b.fontStyle ||
         a.fontWeight !== b.fontWeight ||
         a.kerning !== b.kerning ||
+        a.wordSpacing !== b.wordSpacing ||
         a.letterSpacing !== b.letterSpacing;
 }
 

lib/extract/extractText.js

@@ -60,6 +60,7 @@ export function extractFont(props) {
     let ownedFont = {
         fontFamily: extractSingleFontFamily(props.fontFamily),
         letterSpacing: props.letterSpacing,
+        wordSpacing: props.wordSpacing,
         fontWeight: props.fontWeight,
         fontStyle: props.fontStyle,
         fontSize: props.fontSize ?  '' + props.fontSize : null,

lib/props.js

@@ -54,6 +54,7 @@ const fontProps = {
     fontWeight: numberProp,
     fontStyle: PropTypes.string,
     letterSpacing: PropTypes.string,
+    wordSpacing: PropTypes.string,
     kerning: PropTypes.string,
     font: PropTypes.object
 };