Set MimiFAIRv2.0 up as a package

[FrankErrickson]

But first need to sort out what the current Mimi standards/guidelines are for model packages.

[lrennels]

@FrankErrickson I can handle this no problem, and have done a good amount in #8 already, but I'm not sure we can actually register it in the General Regsitry without making this repository public. For now it is set up as a registry in #8, so you can call

add https://github.com/FrankErrickson/MimiFAIRv2.0.jl.git
# or dev https://github.com/FrankErrickson/MimiFAIRv2.0.jl.git
using MimiFAIRv2.0

but you can't use

add MimiFAIRv2.0

since the name is in the General Registry.

IF we want to convert to a package, we will also need to do the following in addition with the changes I have already made in #8

• add .gitignore/workflows files and the accompanying pkg butler .yml file
• change the combo of include and using Main.MimiFAIRv2 to using MimiFAIRv2 in both runtests.jl and the README.md
• register