Cannot install extension on arm64 about shfb

[EWSoftware]

The main tools might have installed but the MSI installer doesn't do any platform specific checks. The VSIX extension and tools are built using AnyCPU as the target platform so should work. However, I have no hardware on which I can test an arm64 version. I can't guarantee there aren't dependencies that won't work. Help 1 most likely isn't an option as that depends on the HTML Help Workshop to build the output. The other formats should be fine. The standalone GUI might work but may have issues with the editor since it uses NHunSpell for spell checking and that's not arm64 compatible.

If someone else wants to have a go at getting it to build and run, feel free to do so. It may be as simple as adding the installation target to the VSIX manifest. I'm willing to merge any such changes into the project but unfortunately, it's not something I can support or fix if there are issues in the future.