[FEATURE] sap.m.ProgressIndicator: Add HCB icons

1. Add icons to the semantic states
2. Add more examples in the test page

Change-Id: I9d323d1e9be5a957661f6349aa4752b88aadb886
Signed-off-by: Deyan Yanakiev <deyan.yanakiev@sap.com>
[FEATURE] sap.ui.layout.Splitter: HCB Theme

HCB Styles for the sap.ui.layout.Splitter

Change-Id: I79aa0b2d96cdc91373b33529cda3dab643810f10
[FEATURE] FileUploader IconOnly Property

Change-Id: Ic998ae32b6da9a30358a0982ca9cfd69001d6aaf
Merge "[FEATURE] FileUploader IconOnly Property"
Merge "[FEATURE] sap.ui.layout.Splitter: HCB Theme"
Merge "[FEATURE] sap.m.ProgressIndicator: Add HCB icons"