Added Missing Default Reference Benchmarks

[kylanerace]

Proposed changes

• Added Reference Benchmarks for Elementwise Add & Multiply
• Added Reference Benchmarks for Dot Product
• General code clean-up, especially of benchmark execution order
• Defaults are the first 20

Full set of benchmarks ( == added with this PR): 1. Element-wise Add | BFV | Latency 2. Element-wise Add | CKKS | Latency 3. Element-wise Add | BFV | Offline 4. Element-wise Add | CKKS | Offline 5. Element-wise Mult | BFV | Latency 6. Element-wise Mult | CKKS | Latency 7. Element-wise Mult | BFV | Offline 8. Element-wise Mult | CKKS | Offline 9. Dot Product | BFV | Latency 10. Dot Product | CKKS | Latency 11. Dot Product | BFV | Offline *12. Dot Product | CKKS | Offline

13. Mat Mult CipherBatchAxis | BFV | Latency
14. Mat Mult CipherBatchAxis | CKKS | Latency
15. Mat Mult by Value | BFV | Latency
16. Mat Mult by Value | CKKS | Latency
17. Mat Mult by Row | BFV | Latency
18. Mat Mult by Row | CKKS | Latency
19. Logistic Regression | CKKS | Latency
20. Logistic Regression | CKKS | Offline
21. Element-wise Add Plain & Cipher | CKKS | Offline
22. Mat Mult EvalInnerProduct | BFV | Latency
23. Mat Mult EvalInnerProduct | CKKS | Latency

Types of changes

What types of changes does your code introduce to the HEBench PALISADE Reference Backend? Put an x in the boxes that apply

• [ ] Bugfix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] Documentation Update (if none of the other choices apply)

Checklist

Put an x in the boxes that apply. You can also fill these out after creating the PR. If you're unsure about any of them, don't hesitate to ask. We're here to help! This is simply a reminder of what we are going to look for before merging your code.

• [x] I have read the CONTRIBUTING doc
• [x] Current formatting and unit tests / base functionality passes locally with my changes
• [x] I have added tests that prove my fix is effective or that my feature works (if appropriate)
• [ ] I have added necessary documentation (if appropriate)
• [x] Any dependent changes have been merged and published in downstream modules

Further comments

N/A