Add SenseCAP Watcher (#241)

* feat: add sensecap watcher board.

* feat(sensecap): Add button function.

* fix: fix compilation error.

* style:Modify code style.

* fix: fix wake bug

* fix: fix compilation error & Enable click to toggle state.

* style:  move sensecap_audio_codec files to sensecap board

* fix: Optimize shutdown.

main/Kconfig.projbuild

@@ -128,6 +128,8 @@ choice BOARD_TYPE
         bool "无名科技星智1.54(WIFI)"
     config BOARD_TYPE_XINGZHI_Cube_1_54TFT_ML307
         bool "无名科技星智1.54(ML307)"
+    config BOARD_TYPE_SENSECAP_WATCHER
+        bool "SenseCAP Watcher"
 endchoice
 
 choice DISPLAY_OLED_TYPE