Support for JavaScript OR Webpack "stats.json"

[alexkb0009]

This tool would be very useful to visualize JavaScript dependencies.

Webpack has built-in tools that can do this to some degree (See "Webpack Analyzer" at this article), but the resulting visualization is not pleasant to use as the amount of code grows. Some issues in webpack's analyzer include - too many nodes & lines; "filtering down" could be somewhat better (filtered-out nodes remain in graph, but less opaque); performance suffers due to it being an interactive force-directed graph with very many elements that is implemented with JS & canvas, etc.

The shortest/simplest path to having SourceTrail be able to show JS dependencies - I think - might be to create a script (a "binding" ?) that simply imports the "webpack-stats.json", converts to data format/structure needed internally for SourceTrail, and then allows to visualize.

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After making issue, realized an existing issue #2 exists for TypeScript support. As well as in other repo - CoatiSoftware/Sourcetrail#294. If there's more progress with that/those approaches, might be worth closing this topic.