Upgrade to new TS version

[VenelinBakalov]

Description

Original request: vmware/vrealize-developer-tools#132

From time to time I find myself writing sound typescript code only to be stumped when building the project.

As I understand it the vrotsc is based on a much older typescript version than the one included in VS Code.
In VS Code I have now version 5.1.3

and when looking at the vrotsc code it seems to be based of version 3.8.3

Would it be possible to present this infomation or perhaps download the correct version in order for the Intellisense to match the transpile step?

Example

Today I tried to use Template literal types.

With the default typescript in vscode

All seems well until I build the project and it fails with.

But if I manually install and use typescript version 3.8.3
The Intellisense shows it is not valid.

[github-actions]

This issue is stale because it has been open 30 days with no activity. Remove stale label or comment or this will be closed in 7 days.

[VenelinBakalov]

Issue is not stale, currently there is a related PR opened: #245

[github-actions]

This issue is stale because it has been open 30 days with no activity. Remove stale label or comment or this will be closed in 7 days.

[VenelinBakalov]

Still in progress

[pe1pip]

This would be nice... we're working towards improving our unit testing by leveraging yest, and the newer TSC could help