[Keyboard] Satisfaction75 Protoype/Rev1 split, and new VIA features (#5303)

[Keyboard] Satisfaction75 Protoype/Rev1 split, and new VIA features (#5303)

* Add satisfaction75 revision 1

* Update manufacturer

* Add tester layout and update rev1 comments

* Add ifdef guards for OLED for tester

* Add oled disabling rules

* Update to save backlight settings and setup for VIA custom config

* Add new VIA values to satisfaction75

* Safety guard in clock set mode

* Fix mistaken doc edit

* Address PR comments

* bring the default back to pass travis CI

* Address further PR comments