mv_machine_learning: add template to Adapter::create() function

mv_machine_learning: add template to Adapter::create() function

[Issue type] code refactoring

Convert the Adapter::create() function into a template function
to avoid nesting of switch cases for data type and task type.
This patch applies this change to ObjectDetection and
ObjectDetection3d task groups.

Change-Id: I1c65f844f8dd6bb646d3806fa898161db3c347e9
Signed-off-by: Vibhav Aggarwal <v.aggarwal@samsung.com>