[New Framework]: Oxygen.jl

[ndortega]

Hi there, I'm the author of the Oxygen.jl framework and this is my first attempt at registering the framework, please let me know if anything needs to be changed before this can be merged

[joanhey]

• #8420

[pankgeorg]

• No longer accepting plaintext only frameworks / Limited number of tests mutations #8420

@ndortega you can copy handlers from here if you'd like! I'd happily test Oxygen again! (last time I checked it didn't cut the speed, similarly to plain HTTP.jl)