[Tensors] Add tensor dimensions string for negotiation

[Tensors] Add tensor dimensions string for negotiation

Add tensors dimensions string for negotiation.
The default cap form of "other/tenosrs" is

"other/tensors, " \
"rank = (int) [ 1, 4 ], " \
"num_tensors = (int) [1, 65535], "\
"type = (string) { float32, float64, int32, uint32,
	int16, uint16, int8, uint8 }, " \
"framerate = (fraction) [ 0/1, 2147483647/1 ]" \
/* Dimensions of Tensors for negotiation */
/* "dimensions = (string)
    dim1:dim2:dim3:dim4, dim1:dim2:dim3:dim4" */

Signed-off-by: jijoong.moon <jijoong.moon@samsung.com>