Add VERSIONING.md to describe versioning policy (#3476)
Add VERSIONING.md to describe versioning policy (#3476)

* Add VERSIONING.md to describe versioning policy

Signed-off-by: Anthony J Mirabella <bb65d5af60f06ca654295bbce73e2d43310f732e@aneurysm9.com>

* Fix copypasta in versioning example

Signed-off-by: Anthony J Mirabella <bb65d5af60f06ca654295bbce73e2d43310f732e@aneurysm9.com>

* Address review feedback on VERSIONING.md

Signed-off-by: Anthony J Mirabella <bb65d5af60f06ca654295bbce73e2d43310f732e@aneurysm9.com>

* Update VERSIONING.md based on review feedback

Signed-off-by: Anthony J Mirabella <bb65d5af60f06ca654295bbce73e2d43310f732e@aneurysm9.com>

* Clarify that struct tags are part of the public API

Signed-off-by: Anthony J Mirabella <bb65d5af60f06ca654295bbce73e2d43310f732e@aneurysm9.com>
open-telemetry/opentelemetry-collector,open-telemetry/opentelemetry-collector-contrib,open-telemetry/opentelemetry-collector-contrib,open-telemetry/opentelemetry-collector,open-telemetry/opentelemetry-collector