[homeassistant] Native switch entity import and control (#7018)

Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>

esphome/components/homeassistant/switch/__init__.py

@@ -0,0 +1,30 @@
+import esphome.codegen as cg
+from esphome.components import switch
+import esphome.config_validation as cv
+from esphome.const import CONF_ID
+
+from .. import (
+    HOME_ASSISTANT_IMPORT_CONTROL_SCHEMA,
+    homeassistant_ns,
+    setup_home_assistant_entity,
+)
+
+CODEOWNERS = ["@Links2004"]
+DEPENDENCIES = ["api"]
+
+HomeassistantSwitch = homeassistant_ns.class_(
+    "HomeassistantSwitch", switch.Switch, cg.Component
+)
+
+CONFIG_SCHEMA = (
+    switch.switch_schema(HomeassistantSwitch)
+    .extend(cv.COMPONENT_SCHEMA)
+    .extend(HOME_ASSISTANT_IMPORT_CONTROL_SCHEMA)
+)
+
+
+async def to_code(config):
+    var = cg.new_Pvariable(config[CONF_ID])
+    await cg.register_component(var, config)
+    await switch.register_switch(var, config)
+    setup_home_assistant_entity(var, config)