Update localization for v1.0.0

[lauren-li]

• Addresses issue Update localization for version 1.0.0 #372 (Update localization for Zowe Explorer v1.0.0 release)
• Prerequisite for adding webpack (Bundle VSCode extension with webpack #74)
• No new logic in this PR, just updating the existing stringUpdateScript and i18n/sample folder to be current with new strings from the 1.0.0 release.

[codecov]

Codecov Report

Merging #374 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #374   +/-   ##
=======================================
  Coverage   93.79%   93.79%           
=======================================
  Files          14       14           
  Lines        3660     3660           
  Branches      862      862           
=======================================
  Hits         3433     3433           
  Misses        227      227

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[Colin-Stone]

Thanks for the updates Lauren