Add some components to the new testing framework (M part 1) (#6207)

tests/components/max7219/test.esp8266.yaml

@@ -0,0 +1,12 @@
+spi:
+  - id: spi_max6675
+    clk_pin: 14
+    mosi_pin: 13
+    miso_pin: 12
+
+display:
+  - platform: max7219
+    cs_pin: 15
+    num_chips: 1
+    lambda: |-
+      it.print("01234567");