Add validations for included, excluded and priority nodes

[rawdaGastan]

Is your feature request related to a problem? Please describe

To make sure config file is valid, so farmer could notice if the date is wrong or messy

Describe the solution you'd like

Add validations for included, excluded and priority nodes

[A-Harby]

Qanet v0.15.10.

Input validation is working correctly.

Updated validation to all cases.
TC2718 - Farmer Bot Installation with priority_nodes
TC2472 - Farmer Bot Installation with excluded_nodes
TC2466 - Farmer Bot Installation with never_shutdown_nodes

[A-Harby]

But the node priority needs a validation on the node ID to check if it is on the same farm or not.

Farm 180 doesn't have node 291.

farm_id: 180
included_nodes:
  - 26
  - 28
  - 29
excluded_nodes:
  - 27
priority_nodes:
  - 291

The Famerbot is stuck on this error.

[SalmaElsoly]

added nodes validation:

• included, excluded and priority nodes are in the farm
• priority nodes are subset of included nodes
• no overlapping nodes between included and excluded
• no overlapping nodes between priority and excluded

[SalmaElsoly]

• added never shutdown validation
• handled case of all nodes of the farm included