[FEATURE] FileUploader Icon support

Change-Id: I06a8f63ae7a49416d8ee800cbc3db5e578a826a0
[INTERNAL] sap.m.MessageBox: design adaptation of icons and bottom shadow
of bar

Change-Id: I36a917b26e1746f9d3a2d946ace420985e696e40
Merge "[FEATURE] FileUploader Icon support"
Merge "[INTERNAL] sap.m.MessageBox: design adaptation of icons and bottom shadow of bar"