Demo update

[p]Update focused on most pressing demo player issues. [/p][p][/p][p]Changes 0.7.6:[/p]

[p]added separate finisher button \[F key][/p]
[p]added enemy door banging before entering a room[/p]
[p]reception and desert made larger [/p]
[p]fixed teleport sound[/p]
[p]fixed fracture door parts blocking player[/p]
[p]fixed tutorial issues with Mr. Pink[/p]
[p]quieter elevator door sound in cinematic[/p]
[p]fixed camera mixing up on finisher and end slo mo[/p]
[p]added confined mouse cursor setting (for MHOOK)[/p]
[p]fixed sonic the crocodile on hard difficulty[/p]
[p]slide on start kicks weapons[/p]
[p]fixed being able to zoom during menu/settings[/p]
[p]fixed going past door[/p]
[p]added bullet icon to HUD[/p]
[p]fixed janky finisher controls sometimes[/p]
[p]fixed not being able to slide when finisher possible[/p]
[p]gib particles stay longer[/p]
[p]removed damage from Mr. Yellow roll[/p]
[p]fixed inaudible croc death sound[/p]