Fix pin assginment on 74LS783/MC6883

Add MC6883/74LS783 chip

Add custom bit-preserve libraries

Add Subfolder for computers by Dragon Data Ltd. Add basic KiCad project files for Dragon 32 computer

Merge pull request #43 from nicolas-robin/apple1 Apple 1 + ACI

Merge pull request #42 from Cumbayah/Commodore/+4/fixes Commodore Plus4: Replaced absolute paths in sym-lib-table with relative paths

Merge pull request #41 from Cumbayah/Atari/800XL/fixes Atari 800XL: Replaced absolute paths in sym-lib-table with relative paths

Merge pull request #40 from Cumbayah/Commodore/C64/251469.mk2 Commodore/c64/251469 schematic fixes

Adds comments on the Processor Section

Some part of the Terminal Section has been redrawn, no netlist changes