Arguments mapping is very verbose depending on use case

[flaviuvadan]

Is your feature request related to a problem? Please describe.
It sucks to write

func1 = my_func1(...)
func2 = my_func2(
    arguments={'a': func1.get_parameter('a').value, 'b': func2.get_parameter('b').value}   # <<<<<<<<
)

Describe the solution you'd like
Something that allows clients to write

func1 = my_func1(...)
func2 = my_func2(
    arguments=func1.outputs  # <<<<<<<<
)

Hera can, by default, assume that users want to map all the output parameters from func1 to func2

CC: @ljyanesm