Added support for VF Module Delete recipe

Added support for VF Module Delete recipe

Enhanced SOActorServiceProvider to support VF Module Delete Recipe.
Added SOOperationType enum to map the policy recipe with the SO API that
we want to call for a recipe. vf module id from non-base vf module is
used to construct the delete request url and same will be deleted.

Updated SOManager so that it sends request to SO based on the
SOOperationType enum value.

Enhanced RESTManager to add support for the http delete using new class
HttpDeleteWithBody (to allow pass the payload to the SO delete VF module API).

Change-Id: I15b678ed9ebc85dfa7cb62bbf23e41c0fe6e4c69
Issue-ID: POLICY-1079
Signed-off-by: Piyush Garg <piyush.garg1@amdocs.com>