Debug/Diagnostic mode/flag for paket to show more/less info for log

[cloudRoutine]

This would allow paket to print a far more detailed report of what's going on during package resolution than the current verbose setting.

This should make it easier for people to submit more useful bug reports.

(you can assign this to me)

by @enricosada :
adding also a less verbose level may help

[forki]

marked up-for-grabs

[cloudRoutine]

which branch should I do this on?

[forki]

core3

[enricosada]

Changing the description to also show less verbose output to integrate #1559