Add getter methods for time and type of trade

src/Trade.java

 public abstract class Trade {
 	int qty;
 	float price;
+	int time;
+	String type;
 	
 	Trade(int qty, float price) {
 		this.qty = qty;
 		this.price = price;
 	}
 	
-	int getQty() {
-		return qty;
-	}
+	int getQty() {	return qty; }
 	
-	float getPrice() {
-		return price;
-	}
+	float getPrice() { return price; }
+	
+	int getTime() { return time;	}
+	
+	String getType() { return type; }
 }