Add text component (#5336)

Co-authored-by: Maurits <maurits@vloop.nl>
Co-authored-by: mauritskorse <mauritskorse@gmail.com>
Co-authored-by: Daniel Dunn <dannydunn@eternityforest.com>
Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>

esphome/components/text/automation.h

@@ -0,0 +1,33 @@
+#pragma once
+
+#include "esphome/core/automation.h"
+#include "esphome/core/component.h"
+#include "text.h"
+
+namespace esphome {
+namespace text {
+
+class TextStateTrigger : public Trigger<std::string> {
+ public:
+  explicit TextStateTrigger(Text *parent) {
+    parent->add_on_state_callback([this](const std::string &value) { this->trigger(value); });
+  }
+};
+
+template<typename... Ts> class TextSetAction : public Action<Ts...> {
+ public:
+  explicit TextSetAction(Text *text) : text_(text) {}
+  TEMPLATABLE_VALUE(std::string, value)
+
+  void play(Ts... x) override {
+    auto call = this->text_->make_call();
+    call.set_value(this->value_.value(x...));
+    call.perform();
+  }
+
+ protected:
+  Text *text_;
+};
+
+}  // namespace text
+}  // namespace esphome