Convert raw-span-constants to Java constants and make it private to span-normalizer only

[findingrish]

The entire platform consumes raw-constants. Can we do this?

[kotharironak]

@rish691 Can you describe a problem in detail?

[findingrish]

This was a proposal originally made by @buchi-busireddy.
I am assuming the intention is to stop the usage of raw-span-constants in the platform and limit to the ingestion path.

[buchi-busireddy]

This was a proposal originally made by @buchi-busireddy.
I am assuming the intention is to stop the usage of raw-span-constants in the platform and limit to the ingestion path.

Correct. The new library that we have written should be used everywhere and these constants could become private to that library then.

[kotharironak]

@rish691 is it done?