FastFail feature #1042

[Paxman23l]

Fixes Or Enhances

Adds failfast feature which returns the first validation error encountered. This can be set by a flag or function call. This PR was based on Issue 1042

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• [x] Tests exist or have been written that cover this particular change.

@go-playground/validator-maintainers

[coveralls]

coverage: 74.012% (+0.02%) from 73.991% when pulling 57d69a83fc5fba973b9107449043630dd9b2b975 on Paxman23l:paxman23l/fail-fast-feature into 5bf55dc757cad229e8297d42640ec036e2360df7 on go-playground:master.

[deankarn]

interesting idea, let me think about the implications for a while :)

[xmgtony]

Will this feature be merged? It's a very interesting and useful addition, and I'm looking forward to it.