allow utf8 characters

[kaz462]

Regarding the non-ascii I suggest we should allow utf8 characters (including Chinese, Japanese ...etc), For eSubmission in China, one of the request is translate the foreign language data package (e.g. English) to Chinese. (variable label, dataset label, meddra, whodrug terms, primary end point related code list ..etc need to be translated from English to Chinese).

Originally posted by @siye6 in #194 (comment)

[bms63]

I'm wondering if this is getting out of scope. We really were focused just on FDA for submissions.

Maybe we should have a series of helper packages for the other agencies? @atorus-research/xportr-development-team

[bms63]

ACtually musing on this a bit more....maybe a xportr_write_china()

or an argument that you supply with the agency? xportr_write( agency = c("fda", "china", "pmda", etc)

[bms63]

Let's put this on the 0.5.0 Project board!