Add Logic entities

[savage13]

Is this the links between objects or the actual Logic data? I have a draft implementation of the object linkage.

[leoetlino]

The former. I was thinking of having the objmap:

• for each object, show a list of Logic entities that are referencing it
• for each Logic, showing its details + the list of objects that it references

Showing the actual Logic script is far more complicated and I think this can be done at a later date

[leoetlino]

fixed in 1aeffb048a130662c1dcc66950bc2f6cd2500768