There has been some confusion about how GitHub labels
should be used.
This commit adds a new doc page, which tries to clarify this.
Signed-off-by: Alberto Escolar Piedras <alpi@oticon.com>
- Added various contents from stale wiki pages
- Added API life cycle document
- Add pictures showing process in general
- Split the document into multiple sections.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>