Refactoring files to make a distinction between EMT and Azure docs

[sgolebiewski-intel]

Merge Checklist

All boxes should be checked before merging the PR

• [] The changes in the PR have been built and tested
• [] cgmanifest file has been updated if required
• [] Ready to merge

Description

Adding the emt- prefix to all documentation files to introduce a distinction between EMT docs and Azure docs.

Note:

• Changes need to be tested to verify the impact on the publishing process. It regards both the documentation website and the pages on Edge Microvisor Toolkit found in Edge Software Catalog.
• To make a clearer distinction, the docs folder could also be prefixed with emt- , however such change would definitely impact the CI builds, so according changes should be implemented there as well.