[INTERNAL] sap.ui.model.odata.type.Boolean: optimization

trim user input in parse
getName()
removed _handleLocalizationChange; no locale-dependent objects saved
minimize constraints

PS3: avoid String.trim()
PS4: ...and use jQuery.trim()

Change-Id: I588e9541d95f34076b0bf8b7fa57264957c06398
Merge "[INTERNAL] sap.ui.model.odata.type.Boolean: optimization"