Feature/67 mouse aim - Githubissues

Description

Updated inventory panel to implement close within the c++ code, but allow the BP to override if desired
Updated inventory panel to keep track of whether the mouse was being shown or not and to reset it to that value when closing instead of setting it to false when closing
Updated inventory panel to not change the input mode at all
Updated BP inventory panel to use new c++ close implementation and remove its original BP implementation
Add left mouse button as a primary attack input
Updated player controller blueprint to set input mode to Game and UI
Updated walljump to do a single linetrace by channel instead of a multi line trace by channel since we only need the first hit to get a walljump
Updated BP_WotCharacter to have a mouselook function which gets the mouse world location and direction and computes the intersection of that vector with with the plane defined by the actor location and the z vector. Then use that intersection to compute a rotation vector for setting the yaw (rotation about the z axis) of the player character
Updated the BP_WotCharacter to set mouse look whenever the left mouse button is held down.

Closes #67

Playing the gameplay test map in the editor.

[ ] Bug fix (non-breaking change which fixes an issue)
[x] New feature (non-breaking change which adds functionality)
[ ] New Art / Asset
[ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
[ ] Documentation Update
[ ] Art / Asset Update
[x] Software change

[ ] My change requires a change to the documentation.
[ ] I have added / updated the documentation related to this change via either README or WIKI

[ ] I have added tests to cover my changes.
[ ] I have updated the .github/workflows/build.yml file to add my new test to the automated cloud build github action.
[x] All new and existing tests passed.
[x] My code follows the code style of this project.