Add MiFID implementation

[Dibz15]

What does this PR do?

Fixes #1578
This is a start of an MiFID implementation, based on the current FID implementation

Before submitting

• [ x] Was this discussed/agreed via a Github issue? (no need for typos and docs improvements)
• [x ] Did you read the contributor guideline, Pull Request section?
• Did you make sure to update the docs?
• Did you write any new necessary tests?

PR review

Anyone in the community is free to review the PR once the tests have passed.
If we didn't discuss your PR in Github issues there's a high chance it will not be merged.

Did you have fun?

Make sure you had fun coding 🙃

[Dibz15]

I recognize this still needs a fair amount of work before it can be added in. I don't have time at the moment to finish the implementation and add the tests, but I hope to get back to it in the near future.

[SkafteNicki]

I recognize this still needs a fair amount of work before it can be added in. I don't have time at the moment to finish the implementation and add the tests, but I hope to get back to it in the near future.

Cool, please let us know if you need help with anything :)

[Borda]

@Dibz15 could you pls allow maintainers to push to this PR / your fork so we can help to finish it? 🐿️

[Dibz15]

@Borda Sorry, should be editable now

[codecov]

Codecov Report

Merging #1580 (70197ce) into master (130cb77) will decrease coverage by 0%.
The diff coverage is 88%.

Additional details and impacted files

@@          Coverage Diff           @@
##           master   #1580   +/-   ##
======================================
- Coverage      87%     87%   -0%     
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  Files         258     259    +1     
  Lines       14589   14672   +83     
======================================
+ Hits        12729   12787   +58     
- Misses       1860    1885   +25