refactor: move solver skeleton implementations to cpp

src/fesa/model/load.cpp

@@ -0,0 +1,25 @@
+#include <fesa/model/load.hpp>
+
+namespace fesa::model {
+
+Load::Load(core::NodeId node_id, DofComponent component, double value)
+    : node_id_(node_id), component_(component), value_(value)
+{
+}
+
+core::NodeId Load::node_id() const
+{
+    return node_id_;
+}
+
+DofComponent Load::component() const
+{
+    return component_;
+}
+
+double Load::value() const
+{
+    return value_;
+}
+
+} // namespace fesa::model