function CreateItemStore( dbName, storeName )
	{
		const request = indexedDB.open( dbName );
		request.onupgradeneeded = () => request.result.createObjectStore( storeName );
		const dbp = PromisifyDbRequest( request );
		return ( txMode, callback ) => dbp.then( ( db ) => callback( db.transaction( storeName, txMode ).objectStore( storeName ) ) );
	}
Creates an IndexedDB store with the specified name
@param {string} dbName - The name of the database
@param {string} storeName - The name of the object store
@returns {function(IDBTransactionMode, function(IDBObjectStore): T|PromiseLike<T>): Promise<T>} A function that executes callbacks against the store
@template T