* Adds some basic constants for metrics utilizing a new jinja template
* Updates generated comments with more explicit nomenclature; Adds Unit and Description consts for each metric; append 'Name' to metric const instead of 'Key'
* Update CHANGELOG
* fix overlooked merge conflict
* change the types of generated consts to string; format generation to handle empty stability and descriptions
* trim trailing (repeated) periods in the description
* manual formatting of some proper nouns; simplify the license header
* update metrics file with concise generated license header
* revert special formatting logic for JVM and ASPNETCore
* Update CHANGELOG.md
* Update CHANGELOG.md
Co-authored-by: Damien Mathieu <42@dmathieu.com>
---------
Co-authored-by: Robert Pająk <pellared@hotmail.com>
Co-authored-by: Sam Xie <sam@samxie.me>
Co-authored-by: Damien Mathieu <42@dmathieu.com>
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
