pkg/translator/pprof: initial commit

[florianl]

Description

Move code from receiver/pprofreceiver to new component pkg/translator/pprof.
This helps to provide easier and unified access to transformation functionality between pprof and OTel profiles. It also helps to have the transformation functionality for pprof to OTel profiles and vice versa in one place and therefore should simplify testing.

At this stage no public API is exposed for the component pkg/translator/pprof.

Link to tracking issue

Fixes

Testing

Documentation

[MovieStoreGuy]

@florianl do you have an issue for creating a package?

[florianl]

do you have an issue for creating a package?

I think I managed to resolve them.

[atoulme]

If it has no public API, how do we have the receiver draw on it? Will this be addressed in a separate PR?

[florianl]

If it has no public API, how do we have the receiver draw on it? Will this be addressed in a separate PR?

@atoulme This is just the first step to move the code. There will be a public API and we should put some thoughts on it.
As moving code shows, this code is not used at all in pprofreceiver at the moment, so there is no break in functionality.

[VihasMakwana]

LGTM overall. Just a question about changelog

[atoulme]

If it has no public API, how do we have the receiver draw on it? Will this be addressed in a separate PR?

@atoulme This is just the first step to move the code. There will be a public API and we should put some thoughts on it. As moving code shows, this code is not used at all in pprofreceiver at the moment, so there is no break in functionality.

understood. Maybe you could copy the code over for now if you want time to think on the API, so we can wire the code in the receiver meanwhile. that's the case, so we're ok!