feat(e2e): add debugclient Go tool for DebugService/TCPLogger E2E scenarios

Standalone headless client that drives a running MARTeApp.ex's
DebugService (TCP 8080 commands, UDP 8081 trace) and TCPLogger (TCP
9090) via marte2debugger/controller's NewHeadlessMarteController, for
the upcoming Test/E2E/suite "debug"/"tcplogger" scenario kinds. Scripts
FORCE/TRACE/BREAK for -mode debug, and triggers+waits for a TCPLogger
log event for -mode tcplogger; reports PASS/FAIL as
result_<scenario>.json/status_<scenario>.txt in -out.

Test/E2E/suite/debugclient/go.mod

@@ -0,0 +1,15 @@
+module debugclient
+
+go 1.21
+
+require marte2debugger v0.0.0
+
+require (
+	github.com/gorilla/websocket v1.5.1 // indirect
+	golang.org/x/net v0.17.0 // indirect
+	marte2/common v0.0.0 // indirect
+)
+
+replace marte2debugger => ../../../../Client/debugger
+
+replace marte2/common => ../../../../Common/Client/go