[POS as a tab i2] Support loading WC plugin and POS feature switch from system status endpoint#15906

jaclync merged 5 commits intotrunkwoocommerce/woocommerce-ios:trunkfrom

feat/WOOMOB-835-load-wc-plugin-pos-feature-switch-from-system-statuswoocommerce/woocommerce-ios:feat/WOOMOB-835-load-wc-plugin-pos-feature-switch-from-system-statusCopy head branch name to clipboard