cache bundles in bundleAndInstall of setUpZoeForTest

[turadg]

What is the Problem Being Solved?

To unit test starting a contract with a ZCF requires a Zoe service. Starting one of those requires installing a bundle.

setUpZoeForTest has bundleAndInstall to help. But it doesn't cache. So we have lots of tests that set up a bundle cache to then pass a cached bundle.

Description of the Design

Make bundleAndInstall cache.

Remove pre-caching from tests using bundleAndInstall.

Maybe also migrate direct uses of E(zoe).install(bundle) use setUpZoeForTest and its caching bundleAndInstall.

Security Considerations

Scaling Considerations

Test Plan

Upgrade Considerations