Fujitsu General climate new component (#677)

* new Fujitsu-General climate component

* Refactor out climate_ir

CC @glmnet

Refactored out climate_ir python files too.
Fixed invalid namespace name for climate_ir.

* Add namespace lint check

* Refactor Fujitsu Climate to climate_ir


Co-authored-by: Otto Winter <otto@otto-winter.com>

esphome/components/fujitsu_general/fujitsu_general.h

@@ -0,0 +1,24 @@
+#pragma once
+
+#include "esphome/core/component.h"
+#include "esphome/core/automation.h"
+#include "esphome/components/climate_ir/climate_ir.h"
+
+namespace esphome {
+namespace fujitsu_general {
+
+class FujitsuGeneralClimate : public climate_ir::ClimateIR {
+ public:
+  FujitsuGeneralClimate();
+
+ protected:
+  /// Transmit via IR the state of this climate controller.
+  void transmit_state() override;
+  /// Transmit via IR power off command.
+  void transmit_off_();
+
+  bool power_{false};
+};
+
+}  // namespace fujitsu_general
+}  // namespace esphome