[geneus_main.py] Resolve package dependencies with attention to the order

[wkentaro]

This is to solve these issue::

• https://github.com/jsk-ros-pkg/geneus/pull/16
• https://github.com/start-jsk/2014-semi/issues/196
• https://github.com/jsk-ros-pkg/jsk_roseus/issues/257

[k-okada]

!!! Thanks!!!

[wkentaro]

This modification may still not solve the problem, when the package has deep implicit dependencies. So DON'T MERGE THIS PR now.

That is difficult to solve dependent order with removing duplicate in function package_depends_impl.

So why not to get all dependencies first, and then check the order? This process solves::

• dependencies (all packages)
• duplicates
• dependent order

I wrote the code:: https://github.com/wkentaro/geneus/commit/3aedcd2d0e80090ec0c0afb4a2c36396b0d571e6

[k-okada]

Ok, so can we merge this?

[wkentaro]

If the ros::load-ros-package fails depending on the order, this new code also can cause same error in some case. I'd like to close this PR and have you merge #18 instead.

[wkentaro]

I close this. See #18