Fix code that should open new files in create-rule script

[IllusionMH]

Feature request

Is your feature request that we implement a new rule?
No

Is your feature request related to a problem? Please describe.
As was mentioned in #817 - create-rule doesn't open newly created files because VSCODE_CWD in no longer available in terminals opened from VS Code. Instead it is better to check TERM_PROGRAM which was added for this purpose (I think) microsoft/vscode@9c82ae8

Describe the solution you'd like

1. Replace check for VSCODE_CWD with check if TERM_PROGRAM is vscode instead.
2. Use flag -g (or --goto) to call VS Code with list of files, instead of separate calls that are much slower (on my machine)
3. Move path with line to README.md to the first argument (this is the only way to make VS Code to respect :line )

Describe alternatives you've considered
Remove code that opened files, but it doesn't looks great if it can be fixed.

Additional context
No.

[JoshuaKGoldberg]

☠️ It's time! ☠️

Per #876, this repository is no longer accepting feature pull requests. TSLint is being deprecated and we recommend you switch to https://typescript-eslint.io.

Thanks for open sourcing with us, everyone!