Dependency clarification

[zfields]

Problem

The dependency information is incomplete, and the available information is unorganized and hard to process.

Solution

Introduced markdown tables to help standardize the dependencies and where to find them. Also created new section to describe using the toolchain via Docker container (which manages all dependencies for the end-user).

I have also supplied the Dockerfile used to create the image that supports containerized toolchain.

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Completeness

• [x] User is totes amazing for contributing!
• [x] Contributor has signed CLA (Info here)
• [ ] Problem and Solution clearly stated
• [ ] Run unit/integration/application tests on device
• [ ] Added documentation
• [ ] Added to CHANGELOG.md after merging (add links to docs and issues)