Framework: Rewrite nodejs.mk and reorganize www/{node,npm,yarn}
The current USES=nodejs has the following issues:
- www/node is not the default version while www/node16 is.
- It also means inconsistent naming of node ports.
- www/npm duplicates with www/npm-node16.
- www/yarn duplicates with www/yarn-node16.
The notable changes are introduced to fix the above issues:
- Rewrite Mk/Uses/nodejs.mk.
- Add new LTS version of nodejs (www/noe18).
- Add new current version of nodejs (www/node19).
- Change default nodejs version from 16 to 18 (latest LTS).
- Use consistent naming for all supported node versions.
- Convert www/node, www/npm and www/yarn to meta ports.
After this commit:
- All supported node versions are named as node{14,16,18,19}
- www/node is a meta port which depends on the default version (e.g. www/node18)
- www/npm is a meta port which depends on the default version (e.g. www/npm-node18)
- www/yarn is a meta port which depends on the default version (e.g. www/yarn-node18)
- Bump PORTREVISION of dependent ports for dependency change (from www/node16 to www/node18)
Discussed with: jrm, otis, pizzamig