Merge branch 'master' of https://github.com/Bodmer/TFT_eSPI

Update library.json

Fix Bodmer#2942

Fix Bodmer#2796 (Bodmer#2827)

Update README.md

Update README.md

Fix Bodmer#1758

As proposed in Bodmer#1914

Clarification

Update TFT_eSPI.h

Add new background fill approach to smooth fonts

A new background rendering approach is used for smooth fonts which almost eliminates flicker. tft.print... can now be used with a background rendered for smooth fonts. Font_Demo_1/2/3... examples have been updated.
A new "docs" folder has been created and files moved there. The Tools folder now only contains support tools.

Bodmer#1757 fixed by using Arduino calls.

A new USER_SETUP_ID parameter can be added to setup files and checked via a new verifySetupID(id); function.

Version raised to v2.4.50