Add push to talk voice assistant (#4648)

* Add push to talk voice assistant

* Refactor most code into voice_assistant

* Make voice_assistant the component and remove push_to_talk (can be done in yaml)

* Fix component setup

* Always AF_INET to match serverside

* Fix microphone and media player co-existence

* Format

* Update codeowners

* Update test file

* Fix endifs

* nullptr not NULL

* clang-tidy

* Format

* fixup: Add VA event data

* Generate proto

* Parse and log events

* Add default to switch

* Fix

* Add mic/va to test5

esphome/components/i2s_audio/microphone/i2s_audio_microphone.h

@@ -0,0 +1,37 @@
+#pragma once
+
+#ifdef USE_ESP32
+
+#include "../i2s_audio.h"
+
+#include "esphome/components/microphone/microphone.h"
+#include "esphome/core/component.h"
+
+namespace esphome {
+namespace i2s_audio {
+
+class I2SAudioMicrophone : public I2SAudioIn, public microphone::Microphone, public Component {
+ public:
+  void setup() override;
+  void start() override;
+  void stop() override;
+
+  void loop() override;
+
+  void set_din_pin(uint8_t pin) { this->din_pin_ = pin; }
+
+ protected:
+  void start_();
+  void stop_();
+  void read_();
+
+  uint8_t din_pin_{0};
+  std::vector<uint8_t> buffer_;
+
+  HighFrequencyLoopRequester high_freq_;
+};
+
+}  // namespace i2s_audio
+}  // namespace esphome
+
+#endif  // USE_ESP32