[wsl] reopen should restore open editors

[pantsmann]

Issue Type: Bug

When I Reopen folder in WSL or Reopen folder in Widows the open editors change. This is really inconvenient as I routinely switch back and forth for testing. I would expect this to be the default functionality, but since it isn't, it would be super nice if the editors/files open in one instance would be the same in the other after Reopening.

VS Code version: Code 1.42.1 (c47d83b293181d9be64f27ff093689e8e7aed054, 2020-02-11T14:45:59.656Z) OS version: Windows_NT x64 10.0.17763 Remote OS version: Linux x64 4.4.0-17763-Microsoft

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz (8 x 2808)
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: enabled 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)	undefined
Memory (System)	15.88GB (2.40GB free)
Process Argv
Screen Reader	no
VM	0%

Item	Value
Remote	WSL: Ubuntu
OS	Linux x64 4.4.0-17763-Microsoft
CPUs	Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz (8 x 2808)
Memory (System)	15.88GB (2.40GB free)
VM	0%

Extensions (10)

Extension	Author (truncated)	Version
xml	Dot	2.5.0
Go	ms-	0.13.0
vscode-yaml	red	0.7.2
code-spell-checker	str	1.7.24
vscode-docker	ms-	0.10.0
remote-containers	ms-	0.101.1
remote-ssh	ms-	0.49.0
remote-ssh-edit	ms-	0.49.0
remote-wsl	ms-	0.42.3
vscode-remote-extensionpack	ms-	0.19.0

[xgdgsc]

Yes, also please restore tab layout on reconnect from another PC.