Provide ignore settings for file paths

[cwadrupldijjit]

I installed this extension into VS Code-Insiders and like it. I found out recently when working on an Electron project that it seems to prevent modification or deletion of asar archive files (reference electron/electron#6295, particularly @bpasero's comments as it directly relates to VS Code extensions, for details).

I suspect that there is a resource lock happening when reading from or writing to .asar files from this extension when it has it "open" in the UI. In this case, I don't really want the asar files to be read from; I just want to be able to run the build process without having to disable the extension or close Code.

I'm also not surprised if this is a Windows-only issue, as I know that they are particular about how FS transactions work, though I also wouldn't be surprised if other platforms have a similar problem.

Until this issue is rectified, however, I will have to disable this extension.