Update interface.lib, relays.lib, contrib.lib, intel.lib, microcontrollers.lib (rearrangement, clean-up, symbols added)

1. MAX31855 Thermocouple Interface has been added to `interface.lib`
2. SAB80C515/535 MCUs has been added to `microcontrollers.lib`, old 80C535 removed from `intel.lib`
3. IR2110 removed from `interface.lib` because this symbol already existed in `ir.lib`
4. FTDI's components from `interface.lib` has been moved to separate `ftdi.lib`
5. Update `interface.lib`, `relays.lib`, `contrib.lib` to match KiCad Library Convention with some clean-up's
  * Pins has been arranged at 100mil grid
  * Pin descriptions and other text has been changed to 50mil text height


Users who wants to make a complex clean-up in existing libraries should read the Wiki page: [Status of the libraries](https://github.com/KiCad/kicad-library/wiki/Status-of-the-libraries) This might help in avoid serious conflicts.