TRA-3212 Passive-Tapper and Mizu share code (#70)

* Use log in tap package instead of fmt.

* Moved api/pkg/tap to root.

* Added go.mod and go.sum for tap.

* Added replace for shared.

* api uses tap module instead of tap package.

* Removed dependency of tap in shared by moving env var out of tap.

* Fixed compilation bugs.

* Fixed: Forgot to export struct field HostMode.

* Removed unused flag.

* Close har output channel when done.

* Moved websocket out of mizu and into passive-tapper.

* Send connection details over har output channel.

* Fixed compilation errors.

* Removed unused info from request response cache.

* Renamed connection -> connectionID.

* Fixed rename bug.

* Export setters and getters for filter ips and ports.

* Added tap dependency to Dockerfile.

* Uncomment error messages.

* Renamed `filterIpAddresses` -> `filterAuthorities`.

* Renamed ConnectionID -> ConnectionInfo.

* Fixed: Missed one replace.

tap/outboundlinks.go

@@ -0,0 +1,29 @@
+package tap
+
+type OutboundLink struct {
+	Src     string
+	DstIP   string
+	DstPort int
+}
+
+func NewOutboundLinkWriter() *OutboundLinkWriter {
+	return &OutboundLinkWriter{
+		OutChan: make(chan *OutboundLink),
+	}
+}
+
+type OutboundLinkWriter struct {
+	OutChan chan *OutboundLink
+}
+
+func (olw *OutboundLinkWriter) WriteOutboundLink(src string, DstIP string, DstPort int) {
+	olw.OutChan <- &OutboundLink{
+		Src: src,
+		DstIP: DstIP,
+		DstPort: DstPort,
+	}
+}
+
+func (olw *OutboundLinkWriter) Stop() {
+	close(olw.OutChan)
+}