[FEATURE] Added a sap.m.ToolbarSeparator
- Created a base theme file
- Created a theme file inside the sap_bluecrystal theme
- Create the separator file and the corresponding renderer.
- Updated Testsuite demo site for the Toolbar.html

Change-Id: I291455a266b947f7087f708dbb30f6b014e746b0
Merge "[FEATURE] Added a sap.m.ToolbarSeparator - Created a base theme file - Created a theme file inside the sap_bluecrystal theme - Create the separator file and the corresponding renderer. - Updated Testsuite demo site for the Toolbar.html"