qt: Add diagonal directional input presets for circlepad and c-stick

[kleidis]

Closes #388

This adds new buttons to configure_input for diagonal direction presets (i.e. upright , downleft and so on) for both the circlepad and c-stick

Preferably should be used for single state keys but also works with game pad analog sticks

Screenshot

[BlurrySquire]

Works fine in Luigi's Mansion 2 and Super Mario 3D Land. Unfortunately I don't have a game that uses the c-stick so I was unable to test the c-stick. Considering that the implementation is the same it should work correctly.

[kleidis]

Works fine in Luigi's Mansion 2 and Super Mario 3D Land. Unfortunately I don't have a game that uses the c-stick so I was unable to test the c-stick. Considering that the implementation is the same it should work correctly.

You can test with a 3ds input tester homebrew
That's what i did, and it worked on my end

[BlurrySquire]

You can test with a 3ds input tester homebrew That's what i did, and it worked on my end

Forgot that those existed, but it is confirmed to work on more than one machine which is good.

[kleidis]

Removed some useless code and rebased, IDK why license CI is failing on config.h tho

[OpenSauce04]

All looks fine to me. Functionality works as expected.