Harmonize ISM metadata and SR public structures names

There are currently defined two similar public structures for ISM metadata parameters, one for the decoder and one for the renderer. I am wondering if there is a reason to have them defined twice or if they should be harmonized.

File common_api_types.h:

typedef struct _IVAS_ISM_METADATA
{
    float azimuth;
    float elevation;
    float radius;
    float spread;
    float gainFactor;
    float yaw;
    float pitch;
    int16_t non_diegetic_flag;
} IVAS_ISM_METADATA;

and

typedef struct
{
    float azimuth;
    float elevation;
    float radius;
    float yaw;
    float pitch;
    int16_t non_diegetic_flag;

} IVAS_REND_AudioObjectPosition;