function dtype2ctor( dtype ) {
	return capitalize( dtype ) + 'ArrayLE';
}
Converts a data type string to a constructor name.

@private
@param {string} dtype - data type
@returns {string} constructor name

@example
var n = dtype2ctor( 'float64' );
// returns 'Float64ArrayLE'

@example
var n = dtype2ctor( 'int32' );
// returns 'Int32ArrayLE'