(chise-turtle-uri-encode-feature-name):

(chise-turtle-uri-encode-feature-name):
- Convert `<-same' to "ideo:same-as".
- Convert `<-simplified' to "ideo:simplified-form-of".
- Convert `<-vulgar' to "ideo:vulgar-form-of".
- Convert `<-ancient' to "ideo:ancient-form-of".
- Convert `->mistakable' to "ideo:mistakable".