[FEATURE] SmartTable - add custom-field button during UI adaptation at run time is now available
[FEATURE] SmartTable - add custom-field button during UI adaptation at run time is now available

Add custom-field button in Personalization dialog during UI adaptation at runtime if FieldExtensibility is enabled.

To be reviewed together with Ia9e6b56ee66655db3e01784579e220d0b236edfa

JIRA: BGSOFUISAKAR-562
Change-Id: I9f3d97870cbf47d17bdf3e27617287f27415fb0e

SAP/openui5,SAP/openui5,SAP/openui5,SAP/openui5