POC: Building src/core types with Bazel

[tylersmalley]

Details: #91056

Lots still needed here, including building all dependencies with Bazel.

[kibanamachine]

💔 Build Failed

• continuous-integration/kibana-ci/pull-request
• Commit: a39ff4e
• Pipeline Steps (look for red circles / failed steps)
• Interpreting CI Failures

Failed CI Steps

• Setup Build Environment and Dependencies
• Setup Build Environment and Dependencies
• Setup Build Environment and Dependencies
• Setup Build Environment and Dependencies
• Setup Build Environment and Dependencies
• Setup Build Environment and Dependencies

Metrics [docs]

‼️ ERROR: metrics for a39ff4e were not reported

To update your PR or re-run it, just comment with:
@elasticmachine merge upstream