Add go as a build prerequisite
Add go as a build prerequisite

As mentioned in [issue 183](https://github.com/cucumber/gherkin/issues/183) `go` was not listed as a prerequisite for the build. This commit adds `go` to the list of prerequisites.
Zearin/gherkin3,Zearin/gherkin3,Zearin/gherkin3,cucumber/gherkin3,Zearin/gherkin3,cucumber/gherkin3,Zearin/gherkin3,SabotageAndi/gherkin,SabotageAndi/gherkin,cucumber/gherkin3,SabotageAndi/gherkin,pjlsergeant/gherkin,cucumber/gherkin3,SabotageAndi/gherkin,SabotageAndi/gherkin,pjlsergeant/gherkin,pjlsergeant/gherkin,cucumber/gherkin3,pjlsergeant/gherkin,Zearin/gherkin3,pjlsergeant/gherkin,SabotageAndi/gherkin,pjlsergeant/gherkin,cucumber/gherkin3,Zearin/gherkin3,pjlsergeant/gherkin,SabotageAndi/gherkin,pjlsergeant/gherkin,cucumber/gherkin3,cucumber/gherkin3,cucumber/gherkin3,SabotageAndi/gherkin,pjlsergeant/gherkin,SabotageAndi/gherkin,Zearin/gherkin3