Feature Request: Create External Table

[gengelbms]

Issue Type: Bug

Support starting the Create External Table wizard from a source table.

SCENARIO

• You have a production database that you want to virtualize so others can analyize the data. Since this database appears in the SERVERS panel, you can go to the source table and start the wizard from there.

Azure Data Studio version: Azure Data Studio 1.0.0 (cab8f3e, 2018-09-20T21:41:50.803Z)
OS version: Darwin x64 17.7.0

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-7920HQ CPU @ 3.10GHz (8 x 3100)
GPU Status	2d_canvas: enabled checker_imaging: disabled_off flash_3d: enabled flash_stage3d: enabled flash_stage3d_baseline: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on native_gpu_memory_buffers: enabled rasterization: enabled video_decode: enabled video_encode: enabled webgl: enabled webgl2: enabled
Load (avg)	2, 1, 1
Memory (System)	16.00GB (1.12GB free)
Process Argv	/Applications/Azure Data Studio.app/Contents/MacOS/Electron
Screen Reader	no
VM	0%