K8200: Example Configuration.h fixed

Example Configuration.h: fixed strange white characters preventing
compilation in lines 1 and 3 - oops

Unified menu selection - by hilighting - made first column avilable

K8200: Example Configurations back in sync and readme update

Example Configurations for K8200 readme.md updated
* readme.md: added description for german umlaut support on LCD

Example Configuration_adv.h for K8200 back in sync
* Configuration_adv.h: rebased and added missing changes for 4th
extruder

Example Configuration.h for K8200 back in sync
* Configuration.h: rebased and added missing changes
* Configuration.h: updated comments for K8200

New function now drops the prechar (select character) and makes the first
column usable for text.
Marking the line is now constantly made by highlighting (reverse).

Replaced selection code in:
lcd_implementation_drawmenu_generic()
_drawmenu_setting_edit_generic()
_drawmenu_sd()

with new function.

Apply some cleanup for recent merge

Apply fix for M600 filament change

Combine 1/(rows+1) with u8g.getHeight() to get rowHeight and just use
that.

Fixes issue #1447 - Overlapping of long descriptions with values.

- Patch from #1453 for delta movement plan
- Fix: Set X with code X instead of adding to X

Reworked bootsplash for DOGM displays another time - saved 1786 bytes

Adjust LCD_WIDTH to make better use of DOGM LCDs 2

Prework for issue #1448 and #1447

Will merge in when pull request #1457 is in.

Replaced calculation to centre bitmap with fixed values.
Saved 20 bytes.

and win another 1694 bytes.

No visible impact.

Fix HD44780 misspelled as HD44870

M200 cleanup, normalization of EXTRUDER loops

Normalized section headers, added some headers, added help URLs for newb...

Solid improvements. Merging.

Select DOGM-displays automaticly.
Give hint where to find charsets.
Add '²' and '³' characters.

Add support for BQ Prusa i3 "Hephestos"