[Feature/Improvement] Get a list of translations

[misterben]

It would be helpful to be able to generate from the library a list/dictionary of the supported translations, ideally both their full name and their 'code'. That way you could, for example, easily generate a drop-down list of translations (and it would automatically update if another translation is supported).

[daniel-tran]

The library contains a global constant with some information about the currently supported translations so, while it's not publicly documented (though I suppose it could be if it's useful to people), you can do something like this to get the list of supported translation abbreviations:

from meaningless.utilities.common import BIBLE_TRANSLATIONS

if __name__ == '__main__':
    print(BIBLE_TRANSLATIONS.keys())