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

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

tests/components/wk2212_spi/common.yaml

@@ -0,0 +1,58 @@
+spi:
+  id: spi_bus
+  clk_pin: ${clk_pin}
+  mosi_pin: ${mosi_pin}
+  miso_pin: ${miso_pin}
+
+wk2212_spi:
+  - id: bridge_spi
+    cs_pin: ${cs_pin}
+    spi_id: spi_bus
+    crystal: 11059200
+    data_rate: 1MHz
+    uart:
+      - id: id0
+        channel: 0
+        baud_rate: 115200
+        stop_bits: 1
+        parity: none
+      - id: id1
+        channel: 1
+        baud_rate: 115200
+
+# individual binary_sensor inputs
+binary_sensor:
+  - platform: gpio
+    name: "pin_0"
+    pin:
+      wk2212_spi: bridge_spi
+      number: 0
+      mode:
+        input: true
+  - platform: gpio
+    name: "pin_1"
+    pin:
+      wk2212_spi: bridge_spi
+      number: 1
+      mode:
+        input: true
+      inverted: true
+
+# Individual binary outputs
+switch:
+  - platform: gpio
+    name: "pin_2"
+    pin:
+      wk2212_spi: bridge_spi
+      number: 2
+      mode:
+        output: true
+  - platform: gpio
+    name: "pin_3"
+    pin:
+      wk2212_spi: bridge_spi
+      number: 3
+      mode:
+        output: true
+      inverted: true
+