[demo] 1.2 release (open-telemetry#546)

- Adds 3 new components to the demo as part of the 1.2 release
  - accountingservice
  - fraudetectionservice
  - kafka
- necessary changes to checkoutservice were also done.
- adds support for frontendproxy to emit traces (new feature in demo 1.2 release)
- use ghcr images instead of docker hub ones
- Some re-ordering of the components took place to better organize them based on key components (alpha sorted), followed by supplemental components (alpha sorted)

charts/opentelemetry-demo/Chart.yaml

@@ -1,7 +1,7 @@
 apiVersion: v2
 type: application
 name: opentelemetry-demo
-version: 0.13.0
+version: 0.14.0
 description: opentelemetry demo helm chart
 home: https://opentelemetry.io/
 sources:
@@ -11,7 +11,7 @@ maintainers:
   - name: puckpuck
   - name: tylerhelmuth
 icon: https://opentelemetry.io/img/logos/opentelemetry-logo-nav.png
-appVersion: "1.1.0"
+appVersion: "1.2.0"
 dependencies:
   - name: opentelemetry-collector
     version: 0.40.7