[FIX] sap.ui.table.Table: Fixing scrollbar flickering
[FIX] sap.ui.table.Table: Fixing scrollbar flickering

* horizontal scrollbar did increase table width, when table had no fixed
width but had fixed columns set (because of scroll padding)
* limited max growing width of scrollbar to its parent width

Change-Id: I0713e9ce0d914f91f9152756ae44fd7c9e7e0267

olirogers/openui5,cschuff/openui5,SAP/openui5,nzamani/openui5,cschuff/openui5,cschuff/openui5,SAP/openui5,olirogers/openui5,SAP/openui5,SAP/openui5,olirogers/openui5,nzamani/openui5,SQCLabs/openui5,nzamani/openui5,SQCLabs/openui5,SQCLabs/openui5