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.

    
Are you talking about these?

https://github.com/KSP-KOS/KOS/pull/463/files#diff-e5f9522b150c5dd8bafab70ca26b7120R47

The DryMass one wasnt using the extension, Ill fix that.