csr: refactor ParseRequest to use Generate
csr: refactor ParseRequest to use Generate

endocode/cfssl,cloudflare/cfssl,endocode/cfssl,drcapulet/cfssl,cloudflare/cfssl,cloudflare/cfssl,APTy/cfssl,cloudflare/cfssl,drcapulet/cfssl,drcapulet/cfssl,APTy/cfssl,endocode/cfssl,sfurman3/cfssl,sfurman3/cfssl,drcapulet/cfssl,drcapulet/cfssl,geligaoli/cfssl,endocode/cfssl,sfurman3/cfssl,sfurman3/cfssl,geligaoli/cfssl,APTy/cfssl,APTy/cfssl,endocode/cfssl,geligaoli/cfssl,geligaoli/cfssl,sfurman3/cfssl,APTy/cfssl,geligaoli/cfssl