[VVP] Fixing mapping issues

[VVP] Fixing mapping issues

Updated to the latest version of the needs.json

R-52530 was removed and replaced with R-511776 which is already
covered by a different test.

test_07_nested_template_in_same_directory: the only remaining
purpose of this method was to test for the existence of the
nested file, but this is already covered by test_valid_nesting

I mapped the unmapped tests in test_inital_configuration to
to the requirement that states the templates must be valid Heat

Change-Id: Ia71d774df8873ebb4182f44eb66b108f9ff24d20
Issue-ID: VVP-142
Signed-off-by: Lovett, Trevor <trevor.lovett@att.com>