Set project from initial selection

CordovaPluginWizard now sets the initial project selection. A new Action
LaunchCordovaPluginWizardAction is introduced to ensure that initial
selection is passed to CordovaPluginWizard when used inside
ConfigEditor.
plugin wizard fixes

Completes the implementation of registry tab validation. Also now
returns the correct plugin versions that are selected
fix for uninstall failure when file is copied to directory

Fixes a case that when file is copied over to directory uninstall does
not append the file name correctly and fails.
plugin installation tests

adds the initial tests for plugin installation