Update the Localize UAT command to better handle gathering for plugins.
- Introduced the -IncludePluginsDirectory parameter to include all plugins under a particular directory
- Introduce the ExcludePluginsDirectory parameter to exclude all plugins under a particular directory
- Introduce the EnableIncludedPlugins flag to add all included plugins that pass the exclude filter to the -EnablePlugins editor command line parameter to ensure the plugins are enabled for gathering.
#rb: Jamie.Dale
#jira: none
#test Used the new commands to perform gathers for directories of plugins and enabling plugins that are not on by default.
[CL 26161937 by leon huang in ue5-main branch]
