[INTERNAL][FIX] grunt theme build: enable inline theme parameters
[INTERNAL][FIX] grunt theme build: enable inline theme parameters

By providing the library name to the "openui5_theme" task it will
inline the theme parameters (library-parameters.json) to the
library.css file which can save a request to the JSON in case the
CSS has been fully loaded once the parameters are accessed
(see sap.ui.core.theming.Parameters)

Change-Id: Id30a9c52558ca6fd5799020683dbf9bd320c0662
Fixes: https://github.com/SAP/openui5/issues/1114

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