Add makefile target 'show_build_options' and 'show_all_features' (#5048)

* Add makefile target 'show_build_options' and 'show_all_features'

Example:
```
$ make  planck:default:show_all_features
QMK Firmware 0.6.266
Making planck/rev5 with keymap default and target show_all_features

 PLATFORM = AVR
 FIRMWARE_FORMAT = hex

Build Options:
  BOOTMAGIC_ENABLE = no
  MOUSEKEY_ENABLE = no
  EXTRAKEY_ENABLE = yes
  CONSOLE_ENABLE = yes
  COMMAND_ENABLE = no
  SLEEP_LED_ENABLE = no
  NKRO_ENABLE = yes
  BACKLIGHT_ENABLE = no
  RGBLIGHT_ENABLE = no
  MIDI_ENABLE = no
  UNICODE_ENABLE = no
  BLUETOOTH_ENABLE = no
  AUDIO_ENABLE = yes
  FAUXCLICKY_ENABLE =
  HD44780_ENABLE =

Other Features:
  API_SYSEX_ENABLE = no
  RGB_MATRIX_ENABLE = no
```

* remove duplicate 'SPLIT_KEYBOARD'

* add .PHONY, change 'echo' -> '@echo'

* update show_options.mk: useing variable BUILD_OPTION_NAMES, HARDWARE_OPTION_NAMES and OTHER_OPTION_NAMES

* update show_options.mk: add KEYBOARD,KEYMAP

* update show_options.mk: add sorting

* update show_options.mk: add show_full_features, add $(origin XXX)

* update show_options.mk: Macro names was collected from keyboards/.

* update show_options.mk: add some Macro Names

2 files changed, 137 insertions, 0 deletions

diff --git a/build_keyboard.mk b/build_keyboard.mk
index 0239a58b79..71ba805236 100644
--- a/build_keyboard.mk
+++ b/build_keyboard.mk
@@ -371,4 +371,5 @@ all: build check-size
 build: elf cpfirmware
 check-size: build
 
+include show_options.mk
 include $(TMK_PATH)/rules.mk
diff --git a/show_options.mk b/show_options.mk
new file mode 100644
index 0000000000..e72dd75cfa
--- /dev/null
+++ b/show_options.mk
@@ -0,0 +1,136 @@
+BUILD_OPTION_NAMES = \
+  BOOTMAGIC_ENABLE \
+  MOUSEKEY_ENABLE \
+  EXTRAKEY_ENABLE \
+  CONSOLE_ENABLE \
+  COMMAND_ENABLE \
+  NKRO_ENABLE \
+  TERMINAL_ENABLE \
+  CUSTOM_MATRIX \
+  CUSTOM_DEBOUNCE \
+  SPLIT_KEYBOARD \
+  DYNAMIC_KEYMAP_ENABLE \
+  USB_HID_ENABLE
+
+HARDWARE_OPTION_NAMES = \
+  SLEEP_LED_ENABLE \
+  BACKLIGHT_ENABLE \
+  BACKLIGHT_CUSTOM_DRIVER \
+  RGBLIGHT_ENABLE \
+  RGBLIGHT_CUSTOM_DRIVER \
+  RGB_MATRIX_ENABLE \
+  SERIAL_LINK_ENABLE \
+  CIE1931_CURVE \
+  MIDI_ENABLE \
+  BLUETOOTH_ENABLE \
+  AUDIO_ENABLE \
+  FAUXCLICKY_ENABLE \
+  HD44780_ENABLE \
+  ENCODER_ENABLE \
+  LCD_ENABLE \
+  LED_BREATHING_TABLE \
+  LED_TABLES \
+  POINTING_DEVICE_ENABLE \
+  VISUALIZER_ENABLE
+
+OTHER_OPTION_NAMES = \
+  UNICODE_ENABLE \
+  UCIS_ENABLE \
+  UNICODEMAP_ENABLE \
+  UNICODE_COMMON \
+  API_SYSEX_ENABLE \
+  AUTO_SHIFT_ENABLE \
+  AUTO_SHIFT_MODIFIERS \
+  COMBO_ENABLE \
+  KEY_LOCK_ENABLE \
+  LEADER_ENABLE \
+  PRINTING_ENABLE \
+  STENO_ENABLE \
+  TAP_DANCE_ENABLE \
+  VIRTSER_ENABLE \
+  OLED_ENABLE \
+  LED_BACK_ENABLE \
+  LED_UNDERGLOW_ENABLE \
+  LED_ANIMATIONS \
+  IOS_DEVICE_ENABLE \
+  HELIX ZINC \
+  ADAFRUIT_BLE_ENABLE \
+  AUTOLOG_ENABLE \
+  BREATHING_LED_ENABLE \
+  DEBUG_ENABLE \
+  ENCODER_ENABLE_CUSTOM \
+  FADING_LED_ENABLE \
+  GERMAN_ENABLE \
+  HAPTIC_ENABLE \
+  HHKB_RN42_ENABLE \
+  ISSI_ENABLE \
+  KEYBOARD_LOCK_ENABLE \
+  KEYLOGGER_ENABLE \
+  KEYMAP_IN_EEPROM_ENABLE \
+  KEYMAP_SECTION_ENABLE \
+  LCD_BACKLIGHT_ENABLE \
+  LEDMAP_ENABLE \
+  LEDMAP_IN_EEPROM_ENABLE \
+  MACROS_ENABLED \
+  ONEHAND_ENABLE \
+  PS2_MOUSE_ENABLE \
+  RAW_ENABLE \
+  SOFTPWM_LED_ENABLE \
+  SWAP_HANDS_ENABLE \
+  USB_6KRO_ENABLE \
+  WATCHDOG_ENABLE \
+  XT_ENABLE \
+  ERGOINU \
+  NO_USB_STARTUP_CHECK \
+  DISABLE_PROMICRO_LEDs \
+  MITOSIS_DATAGROK_BOTTOMSPACE \
+  MITOSIS_DATAGROK_SLOWUART \
+  RGB_MATRIX_KEYPRESSES \
+  LED_MIRRORED \
+  RGBLIGHT_FULL_POWER \
+  Link_Time_Optimization
+
+define NAME_ECHO
+	@echo "  $1 = $($1)		# $(origin $1)"
+
+endef
+
+.PHONY: show_build_options0 show_build_options
+show_build_options0:
+	@echo " KEYBOARD = $(KEYBOARD)"
+	@echo " KEYMAP   = $(KEYMAP)"
+	@echo " MCU      = $(MCU)"
+	@echo " MCU_SERIES = $(MCU_SERIES)"
+	@echo " PLATFORM = $(PLATFORM)"
+	@echo " FIRMWARE_FORMAT = $(FIRMWARE_FORMAT)"
+	@echo
+	@echo "Build Options:"
+	$(foreach A_OPTION_NAME,$(sort $(BUILD_OPTION_NAMES)),\
+		$(call NAME_ECHO,$(A_OPTION_NAME)))
+
+show_build_options: show_build_options0
+	@echo
+	@echo "If you want to know more, please try 'show_all_features' or 'show_full_features'"
+	@echo
+
+.PHONY: show_all_features
+show_all_features: show_build_options0
+	@echo
+	@echo "Hardware Options:"
+	$(foreach A_OPTION_NAME,$(sort $(HARDWARE_OPTION_NAMES)),\
+		$(if $($(A_OPTION_NAME)),$(call NAME_ECHO,$(A_OPTION_NAME))))
+	@echo
+	@echo "Other Options:"
+	$(foreach A_OPTION_NAME,$(sort $(OTHER_OPTION_NAMES)),\
+		$(if $($(A_OPTION_NAME)),$(call NAME_ECHO,$(A_OPTION_NAME))))
+
+.PHONY: show_full_features
+show_full_features: show_build_options0
+	@echo
+	@echo "Hardware Options:"
+	$(foreach A_OPTION_NAME,$(sort $(HARDWARE_OPTION_NAMES)),\
+		$(call NAME_ECHO,$(A_OPTION_NAME)))
+	@echo
+	@echo "Other Options:"
+	$(foreach A_OPTION_NAME,$(sort $(OTHER_OPTION_NAMES)),\
+		$(call NAME_ECHO,$(A_OPTION_NAME)))