add bpf filter property

Author: kisel

src/main/java/com/cisco/trex/stateless/model/capture/CaptureFilter.java

@@ -5,13 +5,16 @@
 
 @JsonIgnoreProperties(ignoreUnknown = true)
 public class CaptureFilter {
-    
+
     @JsonProperty("rx")
     private int rxPortMask;
-    
+
     @JsonProperty("tx")
     private int txPortMask;
 
+    @JsonProperty("bpf")
+    private String bpfFilter;
+
     @JsonProperty("rx")
     public int getRxPortMask() {
         return rxPortMask;
@@ -31,4 +34,16 @@ public int getTxPortMask() {
     public void setTxPortMask(int txPortMask) {
         this.txPortMask = txPortMask;
     }
+
+
+    @JsonProperty("bpf")
+    public String getBpfFilter() {
+        return this.bpfFilter;
+    }
+
+    @JsonProperty("bpf")
+    public void setBpfFilter(String bpfFilter) {
+        this.bpfFilter = bpfFilter;
+    }
+
 }