Because of the Re-ARM card's pinout there is only one SPI connected to
the RepRap Discount Full Graphic LCD display.  The LCD responds to ANY
SCK transitions no matter if it's enable is inactive.  The result is
garbage (usually bars) on the LCD display whenever there is SD card
activity.

This code minimizes this by only accessing the SD card when changing
directory levels if :
SDCARD_SORT_ALPHA is enabled
SDSORT_USES_RAM is true
SDSORT_CACHE_NAMES is true

The code changes result in file names being pulled from the ALPHA SORT
memory array rather than the SD card.

The code also gives the file count and file index functions their own
variables.  When they shared a common variable the index function
sometimes resulted in the file count being short by 1.

=======================================================================

cardreader.cpp & pins_RAMPS_RE_ARM.h changes

Added another condition to cardreader.cpp to enable getting file names
only from RAM.

pins_RAMPS_RE_ARM.h :
Added comments about the SD card accesses and the LCD display
Combined all versions into this one.

Implement AVR Platform

* UBL_Language_Update

Translatable strings

* Use slightly better wording...

* Use slightly better wording...

* Disallow filament change while paused

* Use kinematic movemements in pause_print and resume_print

Correcting the storage selection.
Also EEPROM error handling on the LCD.

* Fix compilation of ADVANCED_PAUSE_FEATURE without SDSUPPORT

* Fix Identation

* Make use of IS_SD_PRINTING macro

as per @MagoKimbra

Add a parameter to enable/disable audible user script feedback

Filament change causes freeze during paused print. This PR disables Filament change in the prepare menu when a print from SD Card is paused. See #7395

When a user executes a User Menu command, the LCD returns to the main menu. If the user has multiple menu items they want to run, such as one menu item per bed leveling corner, then it's better to stay in the User Menu rather than return to the main menu.

This PR modifies Marlin to stay in the User Menu after a command.

20x4 map integration.    Also some minor changes to the UBL Menu layout.     Both 20x4 LCD's and Graphical LCD panels should have similar functionality now.

Fixes #7150

* fix_planner_refresh_e_positioning

* Fix

=====================

add test to Travis

Original Mesh Bed Leveling replacement put at top of UBL Menu Options to
help facilitate the removal of the Original Mesh Bed Leveling.

Radar display (and control) of the UBL Interactive Mesh Editing.

* excentric probe config fix

* undo last commit

* eccentric probe fix

* oops

* !stow after each probe

* deploy/stow fix

* E parameter + bit of cleanup

* comment

* LCD menu fix