Cowardly refuse to attempt builds with a platform api > 0.2

[matthewmcnew]

• Save build pod creation error in build status

[codecov-io]

Codecov Report

Merging #278 into master will increase coverage by 0.26%.
The diff coverage is 88.88%.

@@            Coverage Diff             @@
##           master     #278      +/-   ##
==========================================
+ Coverage    66.9%   67.17%   +0.26%     
==========================================
  Files          76       77       +1     
  Lines        3082     3101      +19     
==========================================
+ Hits         2062     2083      +21     
+ Misses        772      771       -1     
+ Partials      248      247       -1

Impacted Files	Coverage Δ
pkg/apis/build/v1alpha1/build_pod.go	97.69% <100%> (+0.02%)	⬆️
pkg/apis/build/v1alpha1/build_lifecycle.go	100% <100%> (ø)
pkg/reconciler/v1alpha1/build/build.go	72.72% <81.25%> (+4.09%)	⬆️

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[thisisnotashwin]

Additionally, it would be nice, if we are provided builders that have a lifecycle with a Platform API of > 0.2, we dont mark them as ready, and keep condition false with an unsupported version error message. I am ok with that being a separate PR.

[thisisnotashwin]

❤️