Make the weapon hotkey also holster the weapon

[Q3BFG10K]

Currently, the weapon hotkeys only equip the weapon. It would be nice to be able to press the hotkey to also undraw the weapons.

For example, pressing 1 when the pistols are drawn should holster them.

[aredfan]

Scenarios when using a weapon hotkey (1)	TR1X	.	TR2X	.
Pistols not equipped, alt weapon not drawn	Lara draws pistols	✓	Lara draws pistols	✓
Pistols not equipped, alt weapon drawn	Lara draws pistols	✓	Lara draws pistols	✓
Pistols eqipped, pistols not drawn	Lara draws pistols	✓	Lara does nothing	✕
Pistols equipped, pistols drawn	Lara does nothing	✕	Lara does nothing	✕