Move power_status "library" to it's own folder (#668)

Author: peterharperuk

adc/read_vsys/CMakeLists.txt

@@ -1,14 +1,4 @@
-add_library(power_status_adc INTERFACE)
-target_sources(power_status_adc INTERFACE
-        ${CMAKE_CURRENT_LIST_DIR}/power_status.c
-        )
-target_include_directories(power_status_adc INTERFACE
-        ${CMAKE_CURRENT_LIST_DIR}
-        )
-target_link_libraries(power_status_adc INTERFACE
-        hardware_adc
-        hardware_gpio
-        )
+add_subdirectory(power_status)
 
 add_executable(read_vsys
     read_vsys.c

adc/read_vsys/power_status/CMakeLists.txt

@@ -0,0 +1,11 @@
+add_library(power_status_adc INTERFACE)
+target_sources(power_status_adc INTERFACE
+        ${CMAKE_CURRENT_LIST_DIR}/power_status.c
+        )
+target_include_directories(power_status_adc INTERFACE
+        ${CMAKE_CURRENT_LIST_DIR}
+        )
+target_link_libraries(power_status_adc INTERFACE
+        hardware_adc
+        hardware_gpio
+        )