#2040 Build System Overhaul

[Rixxan]

Description

This Pull includes an overhaul of the current build system, particularly handing off of WiX based systems and a streamlined, more feature-rich installer.

Hands over the installer system to the Inno Setup installer

This allows us to provide a smaller installer file, and provide a platform to provide further expansion and options.

This system is compatible with the existing auto-updater system, and will only require minor changes to the fields already in the XML updater file.

Further edits to documentation may be required as the documentation overhaul goes forth.

As this is only the build system being altered, and post-installed functionality is not changed, this is not a public API-breaking change.

Fixes #2040

Full Changes:

• Removes WiX and associated references
• Renames Build-exe-and-msi.py to build.py
• Removes Installer logic from Build.py
• Adds inno setup and build to GitHub Actions
• Adds EDMC ISS file for exe building
• Adds installer.py which includes instructions to build an installer file outside of GitHub actions
• Removes iSort in lieu of pylint/black (upcoming)

Type of change

• New feature (non-breaking change which adds functionality)
• This change requires a documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

• Tests with included alterations to Release auto build made and output confirmed.
• Multiple install runs, clean installs, self-updates, and others made to confirm functionality
• All PyTest tests pass

[C1701D]

Using the new Installer to install EDMC over an older version (which was installed using the old Installer) causes a separate entry in the Windows Apps list to be created. The new entry has a different name (EDMarketConnector + Version) and instead of the EDMC icon a default program icon.
Additionally uninstalling one of the two entries leaves some residual files behind (depending on which one the Start Menu entry, Uninstaller Files, AppData files etc.) and the new Installer will require a full system reboot before installing EDMC.