Support all healthcheck parameters

[ben512]

Currently the healthcheck call only supports:
standbyOk
activeCode
standbyCode
sealedCode

It would be great if it can support all the parameters defined in:
https://www.vaultproject.io/api/system/health.html#parameters

[StancuFlorin]

+1

[jarrodcodes]

Hey there, thanks for the feature request. I went ahead and knocked this out:
#153

[ben512]

Great, thanks!

Please feel free to close this issue once this feature is released.