added metadata parser support for communityTemplateDefinitions and communityThemeDefinitions
added metadata parser support for communityTemplateDefinitions and communityThemeDefinitions

SalesforceFoundation/CumulusCI,SalesforceFoundation/CumulusCI,Joble/CumulusCI,cdcarter/CumulusCI,e02d96ec16/CumulusCI,e02d96ec16/CumulusCI