Problem with right_looking_flag on S1 products

Description

Rigth looking flag is always true for S1 products. Old metadata (from v7.4/geom) do not contain a key to specify this flag (such as support_data.look_side). Without this key, the flag is set, by default to false.

IMO, we can set this flag to true in Sentinel1ImageMetadataInterface : patch

Configuration information

OS centos 7.9 (HAL), OTB release-8.0