[sequential] remove all calls to the deprecated `*_PARAM*` macros

Replace all calls of `*_PARAM*` macros by correspnding calls to
`getParam`. Remove the corresponding properties. If `getParam`
is called more than once for one parameter, specify a default value
in [`properties.hh`](dumux/porousmediumflow/sequential/properties.hh).
Otherwise, specify the default value in the call to `getParam`.