Free roam in multiplayer + a bunch of improvements and bug fixes!

As promised free roam is now available as a game mode in multiplayer! And I threw in a huge amount of improvements and bug fixes just for good measure! New Features:

-Free roam can now be played in multiplayer!

-Free roam mode can also be played alone in multiplayer, so you can put up a public lobby and then free roam while waiting for players

Changes:

-Track features (jumps, berms, etc.) can now be twice as long as before

-Improved flip/trick detection in free roam mode, reduced threshold for "Flat Spin" detection so they can be achieved by doing 180s on quarterpipes or other transfers

-Multiplayer now remembers the last game mode selected when youre the host

-Increased combo runout timer to make combos easier to pull off in free roam mode

Bug Fixes:

-Fixed ground collision on Mountain View Skatepark in a few spots to stop passthroughs

-Improved "Through the trees" gap detection

-Average lap time display fixed from being a weighted average to a true average

-Fixed skidmarks glitching when resetting in free roam mode

-Fixed the first hill feature shape having the wrong base length

-Fixed rare bug where following a certain sequence of events could lead to the wrong car being used in campaign mode

-Fixed chassis colors not always loading correctly on potato/low graphics settings

-Fixed camera spazing out when stuck near/under an object

-Fixed loading screen/transition not waiting correctly in multiplayer

-Fixed scene transition not working when leaving game mode as host