Please add appinfo plugin

This is also reported at Debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=954958

We have added a plugin in open-vm-tools. It did not make part of the 11.0.5 release, but has been tested by us. It's part of the Wndows version, and will be part of our next release.

For open-vm-tools, all changes are in this branch (forked directly from the 11.0.5 release): https://github.com/vmware/open-vm-tools/tree/stable-11.0.5-appinfo .

Here is a description for the plugin: https://www.virtuallyghetto.com/2019/12/application-discovery-in-vsphere-with-vmware-tools-11.html
 , or see https://docs.vmware.com/en/VMware-Tools/11.0.0/com.vmware.vsphere.vmwaretools.doc/GUID-3A8089F6-CAF6-43B9-BD9D-B1081F8D64E2.html .

Following are implemented in this changeset:

* New plugin named appInfo is added to VMware Tools. It will be installed
by default in Linux guests.

* This is a 'vmsvc' only plugin. It will be loaded only by vmsvc process.
The plugin will have the system-level privileges since it's loaded by vmsvc
service.

* When loaded, every 30 minutes (can be configured by a switch in tools.conf file),
the plugin gets the list of processes running inside the guest and publishes them
into a guest variable (guestinfo.appinfo). The content will be printed in JSON
format for easy parsing.

* The plugin is enabled by default. If the guest administrator sets the key/value
'disabled=true' in 'appinfo' section in tools.conf file, then the plugin is disabled
and doesn't publish any information.

Ex:
 # In tools.conf file

 [appinfo]
 disabled=true

 # via toolbox utility.
 vmware-toolbox-cmd config set appinfo disabled true

* The poll-interval can be adjusted by the guest administrator by tweaking the
poll-interval key under appinfo section in tools.conf file or by calling
vmware-toolbox-cmd utility.

Ex:
  # In tools.conf file

  [appinfo]
  poll-interval = 3600

  # The value should be specified in seconds.
  vmware-toolbox-cmd config set appinfo poll-interval 3600

* From inside the guest, the following commands can be executed to retrieve
  the JSON information published to the guest variable.

  vmtoolsd --cmd “info-get guestinfo.appInfo”
  vmware-rpctool “info-get guestinfo.appInfo”

Thanks,
Oliver