Make mirrored weapons a cvar option

Projects/Android/jni/src/Lambda1VR/L1VR_SurfaceView.c

@@ -1325,6 +1325,7 @@ void VR_Init()
 	vr_enable_crouching = Cvar_Get( "vr_enable_crouching", "1", CVAR_ARCHIVE, "Crouching irl triggers ducking in game" );
     vr_height_adjust = Cvar_Get( "vr_height_adjust", "0.0", CVAR_ARCHIVE, "Additional height adjustment for in-game player (in metres)" );
     vr_flashlight_model = Cvar_Get( "vr_flashlight_model", "1", CVAR_ARCHIVE, "Set to 0 to prevent drawing the flashlight model" );
+	vr_mirror_weapons = Cvar_Get( "vr_mirror_weapons", "0", CVAR_ARCHIVE, "Set to 1 to mirror the weapon models (for left handed use)" );
 
     //Not to be changed by users, as it will be overwritten anyway
 	vr_stereo_side = Cvar_Get( "vr_stereo_side", "0", CVAR_READ_ONLY, "Eye being drawn" );

Projects/Android/jni/src/Lambda1VR/VrCvars.h

@@ -15,6 +15,7 @@ convar_t	*vr_control_scheme;
 convar_t	*vr_enable_crouching;
 convar_t	*vr_height_adjust;
 convar_t	*vr_flashlight_model;
+convar_t	*vr_mirror_weapons;
 
 //Used and updated continuously during rendering
 convar_t	*vr_stereo_side;