work on onevent type and provider

type:
- do not yet do instances collection
- needs rework on one cli calls

provider:
- use proper built commands
- re-add getters and setter
work on onevnet type and provider

- type: add missing property phydev
- provider:
  - read data either from vnet or from vnet/template xml tree
  - append data in case of update (setter)
onevnet type and provider

- fixes and improvements
onecluster type and provider

- adopting work from onevent provider to onecluster
provider onecluster

- rework
- add properties
onehost

- type: add missing property
- provider: rework
oneimage

start working on oneimage provider
onetemplate

start working on onetemplate provider
onehost

- rework
onevnet

ensure exists? delivers proper results even when in non-debug mode
onecluster

we still have the removal missing....
onedatastore

- started working on onedatastore type and provider.
minor changes to type (remove some properties)
oneimage

add more functionality to provider
onetemplate

type: rework for properties
provider: add functinalitly
onevm

refacter type and provider
oneimage

refacter type and provider
onetemplate

refacter type and provider.

provider noew creates an xml template. this can be done far more easy in
REXML natively. ToDo.
onevnet

refacter resource creation
onevnet

rework resoruce creation
oneimage provider

better readable erb syntax