Add Redundancy properties and methods to EOS, JunOS, and F5

[jmcgill298]

The properties and methods associated with redundancy info needs to be added to EOS, Junos, and F5 drivers

EOS:

• peer_redundancy_state
• redundancy_mode
• redundancy_state
• is_active()
• open() to support checking device is_active() before keeping connection open
• init() to pass arg to open() for checking if device is_active()

JunOS:

• peer_redundancy_state
• redundancy_mode
• redundancy_state
• is_active()
• open() to support checking device is_active() before keeping connection open
• init() to pass arg to open() for checking if device is_active()

F5:

• peer_redundancy_state
• redundancy_mode
• redundancy_state
• is_active()
• open() to support checking device is_active() before keeping connection open
• init() to pass arg to open() for checking if device is_active()