Parser base class

GeoJSON is now a parser.  The idea is that we'll want to pass parsers to sources or protocols and want a known type.

src/ol/parser/parser.js

@@ -0,0 +1,21 @@
+goog.provide('ol.parser.Parser');
+
+
+
+/**
+ * @constructor
+ */
+ol.parser.Parser = function() {};
+
+/**
+ * @param {*} data Data to deserialize.
+ * @return {*} Parsed data.
+ */
+ol.parser.Parser.prototype.read = goog.abstractMethod;
+
+
+/**
+ * @param {*} obj Object to serialize.
+ * @return {*} Serialized object.
+ */
+ol.parser.Parser.prototype.write = goog.abstractMethod;