Added parser to get the current price of Bitcoin (#457)

The parser is using a REST API to get the current price of Bitcoin in a JSON document, and show it to the user via the chatbot.

Author: DanielMadsenDK

Parsers/BitcoinPrice.js

@@ -0,0 +1,20 @@
+/*
+activation_example:!bitcoinprice
+regex:!bitcoinprice
+flags:gmi
+*/
+
+var input = current.text.trim(); 
+if (/!bitcoinprice/i.test(input)) {  
+    var quote = new sn_ws.RESTMessageV2();
+    quote.setEndpoint('https://api.coindesk.com/v1/bpi/currentprice.json');
+    quote.setHttpMethod('GET');
+
+    var chatResponse = quote.execute();
+    var chatResponseBody = JSON.parse(chatResponse.getBody());
+
+    if (chatResponseBody && chatResponseBody.length > 0) {
+        var bitcoinpriceFormatted = chatResponseBody.bpi.USD.rate;
+        new x_snc_slackerbot.Slacker().send_chat(current, 'The current price of one bitcoin is: ' + bitcoinpriceFormatted + '$', false);
+    }
+}