Fix(parser): reference type resolution (fix #371)#418

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p1-ra wants to merge 3 commits intoopenapi-generators:mainfrom

P1sec:fix/parser-reference-type-resolution

Commits on May 7, 2021

parser / properties / do not restrict reference pointer type to `enum` or `object`
Nementon
committed
e2e / update `openapi.json` and golden-record
Nementon
committed
tpl / model / add missing typing import: `Tuple,Optional,BinaryIO,TextIO`
Nementon
committed