Add TMP117 component (#992)

* Create TMP117 sensor component

esphome/components/tmp117/tmp117.h

@@ -0,0 +1,27 @@
+#pragma once
+
+#include "esphome/core/component.h"
+#include "esphome/components/sensor/sensor.h"
+#include "esphome/components/i2c/i2c.h"
+
+namespace esphome {
+namespace tmp117 {
+
+class TMP117Component : public PollingComponent, public i2c::I2CDevice, public sensor::Sensor {
+ public:
+  void setup() override;
+  void dump_config() override;
+  float get_setup_priority() const override;
+  void update() override;
+  void set_config(uint16_t config) { config_ = config; };
+
+ protected:
+  bool read_data_(int16_t *data);
+  bool read_config_(uint16_t *config);
+  bool write_config_(uint16_t config);
+
+  uint16_t config_;
+};
+
+}  // namespace tmp117
+}  // namespace esphome