feat(developer): Keyman Developer Vancouver PoC

[mcdurdin]

Holding issue for proof of concept for a new cross-platform Keyman Developer based on VSCode.

Keyman Developer Vancouver is the 'codename' for this concept.

Concept: instead of maintaining our own IDE environment (as we have done up until now with TIKE), we leverage the vscode environment. We could distribute this in two ways:

1. as a "Keyman Author" extension for VSCode. This would plug into any standard vscode install and add widgets and compiler toolchain etc for editing Keyman keyboard/model files.
2. as a standalone "Keyman Developer Vancouver" install, which is a streamlined install of vscode, with as much 'advanced' functionality removed from UI to support the well-established workflow in current TIKE for creating keyboards and models. Some of this is as simple as turning off widgets in the UI.

We will develop this as a demo project initially for review and discussion at Nov2024 Keyman Conference.

[srl295]

🇨🇦

[srl295]

consider https://theia-ide.org/