Countries, currencies and regions infrastructure update

[JeffPyeBrook]

Update countries, regions and currencies to be PHP code based rather than from the database.

• Allows internationalization of country, region and currency information
• Fully backwards compatible with
• Eliminates a significant amount of data being read from the database at startup
• Removes several hundred lines of code from what we have to maintain
• also improves speed and lowers memory footprint

This early PR is being made available so that the peer review can start now while work is being completed

[JeffPyeBrook]

Items in progress

• [ ] Integration testing
• [ ] Comparison and data management routine to pick up changes to core country data ( visibility already works )
• [ ] Additional filters for plugin integrators

[JeffPyeBrook]

@leewillis77 @JustinSainton this is working in my test environment, i'll keep working on it, but it is reviewable in its current state

[JustinSainton]

I'd like to see this in 4.0. Are all unit tests still passing and is this merge-ready?

[JustinSainton]

@JeffPyeBrook What's your bandwidth like for this for the 4.1 cycle?

[JeffPyeBrook]

i'm around

[JustinSainton]

Yay! What's your sense on the ETA for the work here?

[JeffPyeBrook]

i'll have to take a look and see what is left to be done, my vague recollection was that it was substantially done. i would guess that the code is in some of my production configurations and has been for a while?

[JustinSainton]

@JeffPyeBrook Let me know if you have an ETA on this - if we can get all the unit tests passing, comments addressed, and PR rebased, it would be great to get this in 4.0.