Making all signal connections use partials rather than lambdas to wor…

[Liametc]

…k with katana

In katana, signals that are connected to lambdas return booleans rather than the desired objects. Using partials fixes this behaviour

[Liametc]

@pscadding tagging you (again, sorry) to also get this logged. Goes with this PR as part of getting shotgun into Katana

[pscadding]

No problem I've logged this one as well, thanks!

[swc-jesse]

This PR seems to be required to get these signal connections working at all. For example, using the app store version of multi-loader2 in Maya or on the Desktop gives this error, which is resolved by this PR:

File "S:\Projects\ShotgunConfig\tk-multi-loader2\python\tk_multi_loader\loader_action_manager.py", line 378, in <lambda> sg.triggered[()].connect(lambda f=sg_data: self._show_in_sg(f)) File "S:\Projects\ShotgunConfig\tk-multi-loader2\python\tk_multi_loader\loader_action_manager.py", line 478, in _show_in_sg entity["type"], TypeError: 'bool' object is not subscriptable

Is anyone else seeing this? Should it be integrated into the App Store version?