move test implementations to a shared internal package

internal/test/router.go

@@ -0,0 +1,22 @@
+package test
+
+import (
+	"context"
+
+	"github.com/jwetzell/showbridge-go/internal/common"
+)
+
+type TestRouter struct {
+}
+
+func (r *TestRouter) HandleInput(ctx context.Context, sourceId string, payload any) (bool, []common.RouteIOError) {
+	return false, nil
+}
+
+func (r *TestRouter) HandleOutput(ctx context.Context, destinationId string, payload any) error {
+	return nil
+}
+
+func GetNewTestRouter() *TestRouter {
+	return &TestRouter{}
+}