Add way to force expand a compressed directory in the explorer

[mjbvz]

Issue Type: Bug

For #41627

Repo
Open a workspace with the structure:

src/
  sub/
    code.ts

Using compressed folders, this should display as:

src/sub
   code.ts

in the explorer

Bug
I could not find how to create a new file under just the src directory. The new file command always creates it under src/sub.

I proposed we add a way to force expand a compressed folder in the explorer (maybe this already exists but I couldn't discover it)

VS Code version: Code - Insiders 1.41.0-insider (0d728c3, 2019-11-12T05:36:54.895Z)
OS version: Darwin x64 18.7.0

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-4770HQ CPU @ 2.20GHz (8 x 2200)
GPU Status	2d_canvas: enabled flash_3d: enabled flash_stage3d: enabled flash_stage3d_baseline: enabled gpu_compositing: enabled metal: disabled_off multiple_raster_threads: enabled_on oop_rasterization: disabled_off protected_video_decode: unavailable_off rasterization: enabled skia_renderer: disabled_off surface_control: disabled_off surface_synchronization: enabled_on video_decode: enabled viz_display_compositor: enabled_on viz_hit_test_surface_layer: disabled_off webgl: enabled webgl2: enabled
Load (avg)	2, 2, 2
Memory (System)	16.00GB (0.06GB free)
Process Argv	-psn_0_8009635
Screen Reader	no
VM	22%

[joaomoreno]

We're going with something else instead, having demoed in UX call yesterday: #84597 Each folder label in a compressed label will be actionable.