Added textType property to Word class

[bradeggins]

The purpose of this PR is to propose adding a new property to the Word class. It would be useful if a .textType property was available to ascertain whether the text identified in the textract response was PRINTED or HANDWRITING.

Please let me know if you have any ways in which I can improve the PR.

Thanks!

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[schadem]

There have been some changes, a BaseBlock was introduced, the TextType is a general property not limited to WORD. I could add that, but would close this PR or you could grant me permission to post the changes to your repo so you get credits for this.