[To Do]: EX-Installer documentation

[peteGSX]

Task description

Critical path for the documentation refresh:

• Finish EX-Installer documentation
• Conductor level approach with no knowledge of DCC-EX
• How to install on all three supported platforms
• How to obtain logs and test with Device Monitor
• How to deal with execution issues
• How to deal with anti-virus issues

[peteGSX]

This will also be closed by https://github.com/DCC-EX/mkdocs-test/tree/1213-to-do-help-and-support-information