refactor: move impl into .cpp + fix include paths

src/webutil/StreamEndpointDescr.cpp

@@ -0,0 +1,28 @@
+/* @file StreamEndpointDescr.cpp */
+
+#include "StreamEndpointDescr.hpp"
+#include "xo/indentlog/print/tag.hpp"
+#include "xo/indentlog/print/tostr.hpp"
+
+namespace xo {
+    namespace web {
+        StreamEndpointDescr::StreamEndpointDescr(std::string uri_pattern,
+                                                 StreamSubscribeFn subscribe_fn,
+                                                 StreamUnsubscribeFn unsubscribe_fn)
+            : uri_pattern_{std::move(uri_pattern)},
+              subscribe_fn_{std::move(subscribe_fn)},
+              unsubscribe_fn_{std::move(unsubscribe_fn)}
+        {}
+
+        void
+        StreamEndpointDescr::display(std::ostream & os) const {
+            os << "<StreamEndpointDescr" << xtag("uri_pattern", uri_pattern_) << ">";
+        } /*display*/
+
+        std::string
+        StreamEndpointDescr::display_string() const { return tostr(*this); }
+    } /*namespace web*/
+} /*namespace xo*/
+
+
+/* end StreamEndpointDescr.cpp */