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_GEN7_14.h

@@ -70,6 +70,9 @@
 #define HEATER_0_PIN 4
 #define HEATER_BED_PIN 3
 
+//
+// Misc. Functions
+//
 #define PS_ON_PIN 15
 
 // A pin for debugging