The initial retype table concrete implementation

[hungry-foolish]

Summary of this Pull Request (PR)

The initial retype table implementation, passed microbooter test. Currently the page table logic is untouched. Many style issues are fixed.

Intent for your PR

Choose one (Mandatory):

• [x] This PR is for a code-review and is intended to get feedback, but not to be pulled yet.
• [ ] This PR is mature, and ready to be integrated into the repo.

Reviewers (Mandatory):

@rskennedy @yzcode @ryuxin @wenyuanshao @gparmer @phanikishoreg

Code Quality

As part of this pull request, I've considered the following:

Style:

• [x] Comments adhere to the Style Guide (SG)
• [x] Spacing adhere's to the SG
• [x] Naming adhere's to the SG
• [x] All other aspects of the SG are adhered to, or exceptions are justified in this pull request
• [ ] I have run the auto formatter on my code before submitting this PR (see doc/auto_formatter.md for instructions)

Code Craftsmanship:

• [x] I've made an attempt to remove all redundant code
• [x] I've considered ways in which my changes might impact existing code, and cleaned it up
• [x] I've formatted the code in an effort to make it easier to read (proper error handling, function use, etc...)
• [x] I've commented appropriately where code is tricky
• [x] I agree that there is no "throw-away" code, and that code in this PR is of high quality

Testing

I've tested the code using the following test programs (provide list here):

• micro-booter

[gparmer]

I'm closing this. You're taking the code in a direct that could never be pulled. I suggest that you still address @phanikishoreg's comments after your done with this push. I want to see his feedback addressed in the next version.