[2pncmin][2pnc-cleanup] adapt include in 2pncmin due to 2pnc cleanup, and renew 2pnc model properties and TypeTags

* fix includes
* do not inherit from physical model anymore

Cleanup/staggered ff

See merge request !662

* clean-up
* use correct discretization tag
* use correct includes

* rename folder staggeredni -> nonisothermal
* use Dune ifelse for energy-transport/storage in fluxVars/localRes
* remove now obsolete headers
* now independent of discretization

* use generic advective flow method

* similiar to PM flow, takes lambda to get transported quantity

* use tag dispatching for different discretizations

* clean up

* do some clean-up as well

Fix/sequential props

See merge request !660

[modelprops] Do not set default numEq=1 as it breaks the sequential model. It is not needed to have a default for that anyway.

Feature/test angeli

See merge request !653

* Adapt fluidsystem
* make some variables const

Cleanup/remove default components prop

See merge request !658