BFD tunnel monitoring test cases suite.

BFD tunnel monitoring test cases suite.

New library added and Moved Datastore dump to this
common genius library file

Adding BFD file to testplan file of genius
Added __init__.robot to executed before BFD suite

Incorporate the review comments given by JamO like
implemented local keyword for repatative code,
removed sleeps, and defined a array to log required
datastore.

Removed single file execution which was there in genius
test plan file.

Update of review comment of patch 18 and rename of variable
in "Get Model Dump" keyword of common library

Review update on patch 19.
1. Add comment line for converting hex to decimal
2. Delete unwanted logs
3. Have a keyword for repeat lines

Change-Id: I0b6cff1c53b725c8f852ef0b063e37a73fce761a
Signed-off-by: Nazeerahamed <nazeerahamed.hunshyal@tcs.com>