* Helix/pico use post_rules.mk insted of local_features.mk
Tested with the following procedure.
```
git checkout 77a93fec79 (qmk/develop)
make clean
make helix/pico:all:check-md5
make helix/pico/sc:all:check-md5
git checkout helix_use_post_rules.mk
make clean
make helix/pico:all:check-md5
make helix/pico/sc:all:check-md5
```
* Helix/rev2 use post_rules.mk
Tested with the following procedure.
```
git checkout 77a93fec79 (qmk/develop)
make clean
make helix/pico:all:check-md5
make helix/pico/sc:all:check-md5
make helix/rev2:all:check-md5
make helix/rev2/sc:all:check-md5
git checkout helix_use_post_rules.mk
make clean
make helix/pico:all:check-md5
make helix/pico/sc:all:check-md5
make helix/rev2:all:check-md5
make helix/rev2/sc:all:check-md5
```
* Better handle LTO_ENABLE
Especially when calling from command line
* Replace LINK_TIME_OPTIMIZATION_ENABLE with LTO_ENABLE
* Remove long for LTO from show_options.mk
* add temporary test shell-spript
* Use LINK_TIME_OPTIMIZATION_ENABLE instead of Link_Time_Optimization
No change in build result.
* Helix config.h use '#pragma once'
No change in build result.
* Helix helix.h,rev?/rev?.h,pico/pico.h use '#pragma once'
No change in build result.
* Use drivers/avr/pro_micro.h instead of keyboards/helix/pro_micro.h
No change in build result.
* remove keyboards/helix/{rev2|pico}/serial_config.h
No change in build result.
* 'HELIX_ROWS' macro is now referenced only in rev1/config.h and rev2/config.h.
No change in build result.
* The contents of helix/rules.mk were distributed to subdirectories.
This is a preparation to create a new subdirectory for helix code using split_common.
No change in build result.
remove 'USE_I2C = yes', 'SUBPROJECT_rev1 = no' from keyboards/helix/rules.mk.
follow code move from keyboards/helix/rules.mk to keyboards/helix/{rev1,rev2,pico}/rules.mk.
----
SRC += i2c.c
SRC += serial.c
SRC += ssd1306.c
CUSTOM_MATRIX = yes
---
* helix/{i2c.[ch], serial.[ch], ssd1306.[ch]} move into helix/local_drivers/
No change in build result.
* Simplified 'helix/pico/keymap/*/rules.mk' using KEYBOARD_LOCAL_FEATURES_MK.
No change in build result.
* add keyboards/helix/pico/local_features.mk
* add 'KEYBOARD_LOCAL_FEATURES_MK := $(dir $(lastword $(MAKEFILE_LIST)))local_features.mk' into keyboards/helix/pico/rules.mk
* remove HELIX_CUSTOMISE_MSG from keyboards/helix/pico/keymaps/*/rules.mk
* remove HELIX= process from keyboards/helix/pico/keymaps/*/rules.mk
* remove convert code(helix to standaerd) from keyboards/helix/pico/keymaps/*/rules.mk
* add 'include $(strip $(KEYBOARD_LOCAL_FEATURES_MK))' into keyboards/helix/pico/keymaps/*/rules.mk
* Simplified 'helix/rev2/keymap/*/rules.mk' using KEYBOARD_LOCAL_FEATURES_MK.
No change in build result.
* add keyboards/helix/rev2/local_features.mk
* add 'KEYBOARD_LOCAL_FEATURES_MK := $(dir $(lastword $(MAKEFILE_LIST)))local_features.mk' into keyboards/helix/rev2/rules.mk
* remove HELIX_CUSTOMISE_MSG from keyboards/helix/rev2/keymaps/*/rules.mk
* remove HELIX= process from keyboards/helix/rev2/keymaps/*/rules.mk
* remove convert code(helix to standaerd) from keyboards/helix/rev2/keymaps/*/rules.mk
* add 'include $(strip $(KEYBOARD_LOCAL_FEATURES_MK))' into keyboards/helix/rev2/keymaps/*/rules.mk
* Added helix keyboard build NEW method.
No change in build result.
## Helix build
$ make helix:default ## no oled, no backlight, no underglow
$ make helix/rev2/back:default ## no oled, with backlight, no underglow
$ make helix/rev2/under:default ## no oled, no backlight, with underglow
$ make helix/rev2/oled:default ## with oled, no backlight, not underglow
$ make helix/rev2/oled/back:default ## with oled, with backlight, no underglow
$ make helix/rev2/back/oled:default ## with oled, with backlight, no underglow
$ make helix/rev2/oled/under:default ## with oled, no backlight, with underglow
$ make helix/rev2/under/oled:default ## with oled, no backlight, with underglow
## Helix pico build
$ make helix/pico:default ## no oled, no backlight, no underglow
$ make helix/pico/back:default ## no oled, with backlight, no underglow
$ make helix/pico/under:default ## no oled, no backlight, with underglow
$ make helix/pico/oled:default ## with oled, no backlight, not underglow
* add temporary test shell-spript
* test end remove test script. Revert "add temporary test shell-spript"
This reverts commit 5dac20cd0f8b4bc192edb2313652c1635f829657.
* test end remove test script. Revert "add temporary test shell-spript"
This reverts commit ec49f63b2dc0f2b3fe8c1c36ffa615cee2f7e3ed.
* Extended the 'HELIX=' option. add keyword 'verbose', 'no_ani'.
No change in build result.
* update keyboards/helix/{rev2,pico}/keymaps/default/readme.md
* rename KEYBOARD_TOP_DIR to HELIX_TOP_DIR in rules.mk
* update keyboards/helix/{rev2,pico}/keymaps/default/readme_jp.md
* rm keyboards/helix/pico/oled/rules.mk
* update helix's readmes. All the ':avrdude' was replaced with ':flash'.
* remove F_CPU, ARCH, F_USB, INTERRUPT_CONTROL_ENDPOINT from helix/rules.mk
No change in build result.
* Helix each keymap's using rgblight mode symbol instead magic number
No change in build result.
* Helix pico keymaps: make rgblight modes selectable.
No change in build result.
* Helix rev2 keymaps: make rgblight modes selectable.
No change in build result.
* fixed Helix froggy/keymap.c: invalid rgblight mode value 0 to 1 (=RGBLIGHT_MODE_STATIC_LIGHT)
* Deselect RGB_TEST and ALTERNATING in Helix rev2,pico keymaps config.h.
