Add kubernetes example for hotrod app

[highb]

Which problem is this PR solving?

• Provides an easy example for running the Jaeger all-in-one service and the hotrod app in any k8s cluster for demo and testing purposes.

Short description of the changes

• Adds a kubernetes deployment example with configuration modes for Jaeger all-in-one and the hotrod app by itself. Can be used with kustomize out of the box or the manifests can be applied directly to your cluster.

[codecov]

Codecov Report

Merging #3645 (323fe27) into main (7ad154e) will decrease coverage by 0.08%.
The diff coverage is n/a.

❗ Current head 323fe27 differs from pull request most recent head 5842ad9. Consider uploading reports for the commit 5842ad9 to get more accurate results

@@            Coverage Diff             @@
##             main    #3645      +/-   ##
==========================================
- Coverage   96.50%   96.42%   -0.09%     
==========================================
  Files         267      264       -3     
  Lines       15653    15509     -144     
==========================================
- Hits        15106    14954     -152     
- Misses        457      465       +8     
  Partials       90       90              

Impacted Files	Coverage Δ
plugin/storage/grpc/shared/grpc_client.go	79.06% <0.00%> (-6.73%)	⬇️
plugin/storage/grpc/shared/grpc_server.go	74.28% <0.00%> (-1.88%)	⬇️
plugin/storage/grpc/factory.go	94.64% <0.00%> (-0.44%)	⬇️
plugin/storage/grpc/grpc.go	0.00% <0.00%> (ø)
cmd/collector/app/options.go	100.00% <0.00%> (ø)
cmd/query/app/static_handler.go	95.80% <0.00%> (ø)
cmd/collector/app/span_processor.go	100.00% <0.00%> (ø)
plugin/storage/grpc/memory/plugin.go	100.00% <0.00%> (ø)
plugin/storage/grpc/shared/plugin.go	0.00% <0.00%> (ø)
cmd/collector/app/sanitizer/sanitizer.go	100.00% <0.00%> (ø)
... and 5 more

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[yurishkuro]

@joe-elliott I assume you work with k8s, can you give this one a spin to validate?

[yurishkuro]

Thanks, @highb. If people find issues with these instructions, prepare to be tagged :-)