Added blimp support strings.

Previously we use 0.5 strings in //blimp/client/app, which are also java
strings generated from a grd file.

This CL port some of the strings into //blimp/client/support/resources.
The embedder may depend on this to access blimp external strings.

The grd file for support strings will only generate strings used in
native code.

There will be another grd file for blimp internal only strings.

BUG=630687

Review-Url: https://codereview.chromium.org/2406203003
Cr-Commit-Position: refs/heads/master@{#426001}
55 files changed