function dcabs1( z ) {
	return abs( real(z) ) + abs( imag(z) );
}
Computes the sum of the absolute value of the real and imaginary part of a double-precision complex floating-point number.

@param {Complex128} z - complex number
@returns {number} result

@example
var Complex128 = require( '@stdlib/complex/float64/ctor' );

var v = dcabs1( new Complex128( 5.0, -3.0 ) );
// returns 8.0