WIP: set default geometry value

[cielavenir]

I found that webstack geometry API does not return "visible" field always, which has to be interpreted as true.

As C++ does not have None value, the value is undefined. I saw something like 106 or 112, random.

This is the cause of test_planningsystem test_ObjectVisible flakiness.

@woswos @lazydroid There might be some other fields which might need to be filled as well, could you check?

/cc @felixvd @ntohge

[cielavenir]

@woswos @ziyan test_ObjectVisible firstly failed in pipelineid=379165 (Pipeline #601478). Do you know some background?

[cielavenir]

Would need to ask for review from Yoshiki

[cielavenir]

I want to improve this MR when I have time, but testing is tiresome, so I'm going to ensure building by #146 .

[hemangandhi]

Thanks!

[cielavenir]

@felixvd @hemangandhi could you check if there are missing header initialization than visible?

[cielavenir]

it is almost 1 year.

now it is in hurry.

I filed document/team#193.