Add the WeiKai SPI/I2C UART/IO Expander components to esphome (#5218)

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

esphome/components/wk2204_spi/__init__.py

@@ -0,0 +1,30 @@
+import esphome.codegen as cg
+import esphome.config_validation as cv
+from esphome.components import spi, weikai
+from esphome.const import CONF_ID
+
+CODEOWNERS = ["@DrCoolZic"]
+DEPENDENCIES = ["spi"]
+AUTO_LOAD = ["weikai", "weikai_spi"]
+MULTI_CONF = True
+
+weikai_spi_ns = cg.esphome_ns.namespace("weikai_spi")
+WeikaiComponentSPI = weikai_spi_ns.class_(
+    "WeikaiComponentSPI", weikai.WeikaiComponent, spi.SPIDevice
+)
+
+CONFIG_SCHEMA = cv.All(
+    weikai.WKBASE_SCHEMA.extend(
+        {
+            cv.GenerateID(): cv.declare_id(WeikaiComponentSPI),
+        }
+    ).extend(spi.spi_device_schema()),
+    weikai.check_channel_max_4,
+)
+
+
+async def to_code(config):
+    var = cg.new_Pvariable(config[CONF_ID])
+    cg.add(var.set_name(str(config[CONF_ID])))
+    await weikai.register_weikai(var, config)
+    await spi.register_spi_device(var, config)