Uses the worker strategy for ngc and tsc in local development. Quick analysis of time savings

Build command executed:
yarn bazel build //packages/core/test/acceptance:acceptance --define=compile=aot

Clean Build - 33.1% faster

Before:

real    1m39.631s
user    0m0.285s
sys     0m0.088s

After:

real    1m6.712s
user    0m0.283s
sys     0m0.106s

Rebuild - 47% faster

Rebuilds were done with a trivial comment added to packages/core/test/acceptance/attributes_spec.ts

Before:

real    0m10.089s
user    0m0.271s
sys     0m0.119s

After:

real    0m5.265s
user    0m0.276s
sys     0m0.116s