Follow-up the PR #4955, etc

・More ANALOG NUMBERING to Analog Input
・Add comment header to all the section of all the pins files

・Sort sections as follows:
1. Some special definitions (USBCON, LARGE_FLASH, etc)
2. Servos
3. Limit Switches
4. Z Probe
5. Steppers
6. Temperature Sensors
7. Heaters / Fans
8. Misc. Functions
9. LCD / Controller

・Move MAX6675_SS into "Temperature Sensors" section
・Adjust spacing

Marlin/pins_CHEAPTRONIC.h

@@ -75,6 +75,9 @@
 #define HEATER_1_PIN       23 // EXTRUDER 2
 #define HEATER_BED_PIN     22
 
+//
+// LCD / Controller
+//
 // Cheaptronic v1.0 doesn't support LCD
 #define LCD_PINS_RS        -1
 #define LCD_PINS_ENABLE    -1