[nnc] Change interpreter compiler option (#2973)

[nnc] Change interpreter compiler option (#2973)

Replace interpreter compiler option "--input-model-data" with "--input-data-dir". The latter specifies directory in which the data files for the model inputs can be found.
Refactor interpreter to account for this change.

Signed-off-by: Sergei Barannikov <s.barannikov@samsung.com>