Part masses

this PR resolves #456.

    It adds to PART

:MASS
:DRYMASS
:WETMASS
:HASPHYSICS //this was important to the calculation so i decided to expose it

    It adds to SHIP

:DRYMASS
:WETMASS
:TYPE //should have be a different PR but i got carried away

You should now be able to change craft names and types in kerboscript.

    
It should behave just like before if all structures build their suffixes in their constructor. 

https://github.com/KSP-KOS/KOS/blob/develop/src/kOS.Safe/Encapsulation/Structure.cs#L34

that line is replacing a suffix if it doesnt exist, so with c# constructor order they get added basic to derived and it should be the same as before :)