Bootstrap-Vue Vetur Intellisense Definitions

This package, `bootstrap-vue-helper-json`, was originally designed to provide Vetur intellisense reference definitions for Bootstrap-Vue components. Its primary purpose was to enhance developer experience by offering auto-completion and documentation hints within IDEs like VS Code when working with Bootstrap-Vue and the Vetur extension. However, starting with Bootstrap-Vue v2.1, this helper's functionality was directly integrated into the main Bootstrap-Vue package itself. Consequently, `bootstrap-vue-helper-json` became obsolete and its GitHub repository was archived in November 2019. Developers using Bootstrap-Vue v2.1 or newer should rely on the `dist/vetur-tags.json` and `dist/vetur-attributes.json` files provided by the core `bootstrap-vue` package for Vetur support. The original `bootstrap-vue` library (for Vue 2 and Bootstrap 4) is now largely in maintenance mode, with `BootstrapVueNext` serving as the modern successor for Vue 3 and Bootstrap 5.