Import statements repaired for some examples

[Piyush13y]

This PR fixes #623

Description of changes

Import statements for packages like forte.huggingface, forte.elastic, etc were repaired
eg,
import forte.hugginface changed to import forte.huggingface
import forte.elastic changed to import forte.elastic

Possible influences of this PR.

Should allow executing some of our examples without throwing ModuleNotFoundError

[hunterhector]

Thanks for these fixes, we forget to update the examples after that refactoring.

[codecov]

Codecov Report

Merging #624 (f83619f) into master (6ceaf01) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #624   +/-   ##
=======================================
  Coverage   80.75%   80.75%           
=======================================
  Files         240      240           
  Lines       17055    17055           
=======================================
  Hits        13772    13772           
  Misses       3283     3283           

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