Implement output button (#3109)

esphome/components/output/button/output_button.h

@@ -0,0 +1,25 @@
+#pragma once
+
+#include "esphome/core/component.h"
+#include "esphome/components/button/button.h"
+#include "esphome/components/output/binary_output.h"
+
+namespace esphome {
+namespace output {
+
+class OutputButton : public button::Button, public Component {
+ public:
+  void dump_config() override;
+
+  void set_output(BinaryOutput *output) { output_ = output; }
+  void set_duration(uint32_t duration) { duration_ = duration; }
+
+ protected:
+  void press_action() override;
+
+  output::BinaryOutput *output_;
+  uint32_t duration_;
+};
+
+}  // namespace output
+}  // namespace esphome