Add extra AWS API Gateway configuration options

[tleguijt]

Something we might want to be able to configure in a MACH configuration (or apply certain defaults)

Throttling

• [x] Default route throttling settings
• [ ] Per-route throttling settings being able to define that on component level

Logging

• [ ] Enable access logs by default.
• [ ] Add option to disable access logs (needed?)

Metrics

• [ ] Add detailed_metrics_enabled configuration option
• [ ] Enable detailed_metrics_enabled by default?