* No wrap RELEASING Semantic Convention Generation section
* Initial generator
* Update template render
* Add exception and schema templates
* Add semconv/internal http unification
* Add http template
* Add licenses header
* Embed the templates
* Update static version in schema tmpl
* Add semconv-generate target to Makefile
Use this target to generate versions of the semconv packages.
* Generate semconv packages
* Update RELEASING to use make semconv-generate
* Add comments to semconvkit
* Make SemVer a method instead of a field
* Remove semconv/v* from codecov
* Fix lint for semconvkit main.go
* Fix documentation of validateHTTPStatusCode
Co-authored-by: Chester Cheung <cheung.zhy.csu@gmail.com>