Add datastore support for YANG actions

Change-Id: I15b96f70ce89b7bbe3ac0fefb7b018374eeabd84
diff --git a/src/netconf_access.hpp b/src/netconf_access.hpp
index 586840f..d6100a7 100644
--- a/src/netconf_access.hpp
+++ b/src/netconf_access.hpp
@@ -41,6 +41,7 @@
     void commitChanges() override;
     void discardChanges() override;
     Tree executeRpc(const std::string& path, const Tree& input) override;
+    Tree executeAction(const std::string& path, const Tree& input) override;
     void copyConfig(const Datastore source, const Datastore destination) override;
 
     std::shared_ptr<Schema> schema() override;
@@ -49,6 +50,7 @@
 
 private:
     std::vector<ListInstance> listInstances(const std::string& path) override;
+    DatastoreAccess::Tree impl_execute(const std::string& path, const Tree& input);
 
     std::string fetchSchema(const std::string_view module, const
             std::optional<std::string_view> revision, const