Small changes

Added RunAs menu item in pmWindow
Changed behavior when user drag&drop file (or file, or items) in a file
node.
Before, cancel this operation. Now insert after file node.
Renamed RunExe in RunDoubleClick
Fixed bug when user Drag&Drop a link in ASuite (little late to get link
icon)
Separated ExecuteFileOrOpenFolder in two procedure
Fixed #5

Completed RunAs (run process with another Windows user)
Refactored methods Execute and InternalExecute in TvFileNodeData class
Added TProcessInfo and TRunMode
Refactored code when using VST's selected nodes