Add TransformerTagging component

[Chris7C]

Issues:

• Create a TransformerTagging component openmpf#1692
• Update KeywordTagging to work with TransformerTagging openmpf#1706

Related PRs:

• creating transformer sentence tagging component #337
• Updated docker-compose.comonents.yml to include transformer tagger openmpf-docker#204
• Feature/transformer tagging openmpf#1752

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This change is 

[jrobble]

cpp/KeywordTagging/Dockerfile line 36 at r6 (raw file):

ENV LC_ALL C.UTF-8

#mitre cert...

Remove all of the MITRE cert stuff. We don't want to add that to the open source work.

Also, remove the commented-out code below.

If you remove those things, I don't think there should be any updates to this file.

[jrobble]

Please add the Dockerfile for Transformer Tagging.

[jrobble]

Reviewed 2 of 12 files at r1, 3 of 4 files at r2, 3 of 6 files at r3, 4 of 4 files at r4, 5 of 10 files at r7, 3 of 3 files at r9, 4 of 4 files at r10, 5 of 5 files at r11, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @Chris7C)