Depricating funding type in favor of a fine grained config

[f-gate]

I have been thinking of how we can deal with all the different paths that a project can take when it comes to disputes, refunds etc and have come up with an abstraction.
At the moment we do it all on FundingType however this is very broad and actually is just a setting on how a project is funding.
This new abstraction allows for a bit more fine grained control as you set a config on a per project basis but requires devs to be a little more careful.
It may also allow for a sdk for other developers that want to use the escrow and milestone system, also they could make use of the fellowship for disputes.

Any feedback appreciated:
https://play.rust-lang.org/?version=stable&mode=debug&edition=2021&gist=9fd712fef256a43054b21be8dd1d64f1

To be implemented before pallet-dispute.