ISTWCMS-3369: initial commit

...ll/layout_builder_styles.style.uw_lbs_carousel_1_item.yml

...l/layout_builder_styles.style.uw_lbs_carousel_2_items.yml

...l/layout_builder_styles.style.uw_lbs_carousel_3_items.yml

...l/layout_builder_styles.style.uw_lbs_carousel_4_items.yml

...ll/layout_builder_styles.style.uw_lbs_contained_width.yml

...install/layout_builder_styles.style.uw_lbs_full_width.yml

src/CustomBlocks/UwCblBase.php

uw_cfg_common.features.yml

uw_cfg_common.info.yml

uw_cfg_common.module