added binary payoff type.

Author: siddharthqs

src/examples/EQ/binary_option.json

@@ -0,0 +1,33 @@
+{"contracts" : [
+{
+"action":"PV",
+"pricer":"Analytical",
+"asset":"EQ",
+"payoff_type": "Binary",
+"market_data":{
+"underlying_price":100,
+"option_type":"C",
+"strike_price":100,
+"volatility":0.4,
+"risk_free_rate":0.06,
+"maturity":"2023-12-31",
+"dividend": 0.01
+}
+},
+{
+"action":"PV",
+"pricer":"MonteCarlo",
+"asset":"EQ",
+"payoff_type": "Binary",
+"market_data":{
+"underlying_price":100,
+"option_type":"C",
+"strike_price":105,
+"volatility":0.45,
+"risk_free_rate":0.06,
+"maturity":"2023-12-31",
+"dividend": 0.01,
+"simulation":100000
+}}
+]
+}