Fix GAPIC headers

[bjwatson]

The issues with missing gccl/ and stale gapic/ version (0.1.0) needs to be fixed. This was observed with Vision. Its x-goog-api-client header is "gl-node/6.6.0 gapic/0.1.0 gax/0.12.3 grpc/1.2.4".

Then please refresh all GAPICs, and publish their associated packages to npmjs.com.

After that, please update any affect cells in the HTTP header matrix, so I can review (I think Vision is the only API using GAPIC in that matrix).

[lukesneeringer]

Just sent up a PR for Vision. Will do the rest once my Artman changes are merged.

[lukesneeringer]

Just merged a new GAPIC for Vision, which @stephenplusplus is about to release.
Dropping to P1, but will regenerate all GAPICs soon (after Artman changes are merged).