Adding TGR Tris/Tris CE Numpad (#9139)

* Add TGR Tris

* Update readme.md

* Update rules.mk

* Update keyboards/tgr/tris/keymaps/default/keymap.c

Co-authored-by: Joel Challis <git@zvecr.com>

* Update keyboards/tgr/tris/keymaps/via/keymap.c

Co-authored-by: Joel Challis <git@zvecr.com>

* Update keyboards/tgr/tris/keymaps/default/keymap.c

Co-authored-by: Drashna Jaelre <drashna@live.com>

* Update keyboards/tgr/tris/keymaps/via/keymap.c

Co-authored-by: Drashna Jaelre <drashna@live.com>

* Update keyboards/tgr/tris/tris.h

Co-authored-by: Drashna Jaelre <drashna@live.com>

* Update keyboards/tgr/tris/info.json

Co-authored-by: Joel Challis <git@zvecr.com>

* update formatting

* Revert "update formatting"

This reverts commit ae2d6832673985a874f7f43d42bdb56679d851d6.

Co-authored-by: Joel Challis <git@zvecr.com>
Co-authored-by: Drashna Jaelre <drashna@live.com>

keyboards/tgr/tris/rules.mk

@@ -0,0 +1,26 @@
+# MCU name
+MCU = atmega32a
+
+# Bootloader selection
+#   Teensy       halfkay
+#   Pro Micro    caterina
+#   Atmel DFU    atmel-dfu
+#   LUFA DFU     lufa-dfu
+#   QMK DFU      qmk-dfu
+#   ATmega32A    bootloadHID
+#   ATmega328P   USBasp
+BOOTLOADER = bootloadHID
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = no
+MOUSEKEY_ENABLE = no
+EXTRAKEY_ENABLE = yes
+CONSOLE_ENABLE = no
+COMMAND_ENABLE = yes
+BACKLIGHT_ENABLE = yes
+RGBLIGHT_ENABLE = yes
+WS2812_DRIVER = i2c
+
+LAYOUTS = numpad_6x4 ortho_6x4