Partial publish fixes

[davidfowl]

• Fix slash resolution for lock file
• Skip running events when generating lock file after copy
  Dnu publish generates non runnable bundle #1839 dnu publish PrunePackages function deletes every file #1832 "dnu publish" runs scripts for published project #1833

[dnfclas]

@davidfowl, Thanks for signing the contribution license agreement so quickly! Actual humans will now validate the agreement and then evaluate the PR.

Thanks, DNFBOT;