Easier troubleshooting of failing package installation

[krystian-panek-vmltech]

right now due to performance reasons, the package installation output is not being processed/captured fully.

when installing a package via the CRX package manager then a lot of HTML output is produced. AEMC is not buffering it as it is speeding up seriously installation time via CLI.

however, when e.g. some package installation hook fails there is no way to troubleshoot such a case. it is needed then to enter the CRX package manager and click once again "Reinstall" on the package to see the errors. maybe instead AEMC could give an option to print the installation output somehow or buffer it to file or sth that will allow easy troubleshooting.

[krystian-panek-vmltech]

AEMC is using an install service JSON endpoint, not an HTML endpoint like in GAP. when package installation fails (like hook class is unavailable), a valid message is bubbled up. to have more info about the error, it is still necessary to enter crx/packmgr manually.

I am not sure If it is worth it to hit HTML endpoint to get that package installation output.

[krystian-panek-vmltech]

fixed by #177