Voter Reivew: working with single component - threaded replicas

[maloneya]

Summary of this Pull Request (PR)

Add description here.

Submitting the voter for review. Currently works with out recovery in a single component set up with replicas running in their own threads. Looking for feedback on design as discussed in meeting with gparmer on 2/2, and for "rustisms" @Others

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):

(Specify @<github.com username(s)> of the reviewers. Ex: @user1, @user2)

Code Quality

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

Style: At times unsure how to follow the style in rust.

• [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):

• /src/components/implementation/voter/voter_src/rust_src/src/demo_app.rs

[gparmer]

To maintain sanity of these PRs and notifications. I'm going to close this out now. You can continue to comment if you'd like, but reopen, when you want to PR.