New reusable use_node scripts take care of selecting the correct Node.js binary based OSD_NODE_HOME, OSD_HOME, and whatever is in the PATH. It also takes care of finding the binary on FreeBSD.
* The startup scripts check `OSD_NODE_HOME` and `NODE_HOME` before falling back to use the bundled or system-wide Node.js binary.
* Update `package.json` to replace `node` with `use_node`.
* Update file templates and shell scripts to internally use `use_node`.
* Update the build scripts to copy `use_node` into releases
* Make tests that execute node internally, honor the binary being used.

Signed-off-by: Miki <miki@amazon.com>
(cherry picked from commit cb472dc)
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

# Conflicts:
#	CHANGELOG.md

Signed-off-by: Josh Romero <rmerqg@amazon.com>