ShipwrightBuild immediately reports "Ready=true" status

[adambkaplan]

Description

If a ShipwrightBuild object is created after Tekton has been installed, the status condition reports "Read=true" right away.

Expected Behavior

ShipwrightBuild doesn't report the Ready=true status until the underlying build controller deployment reports itself ready.

Actual Behavior

The ShipwrightBuild object reports itself ready immediately.

/kind bug

[adambkaplan]

Note - ShipwrightBuild's Ready condition should reflect the aggregated state of Shipwright Build's system. For now that's just the build controller deployment, but in the future this could include other items directly related to builds (ex - validating webhook).