Add information when you hover over things

[varun7654]

• [x] Hovering over a position of the path should give you information like expected velocity, acceleration, position, etc.
• [x] Hovering over a position of the path should render the bounding box of the robot at that point
• [x] Hovering over a text box in the GUI should tell you what that value represents (x, y, rotation). Also, put the units (meters)

[varun7654]

fixed in fa827cae8044253af9a72cfca7a87d08997b90a2