Fix highlighting color discrepancy for player ship in loadout screen (scp-fs2open#6716)

* Few Minor Visual Indicator Enhancements to Loadout

This PR adds a few visual indicator tune-ups to the loadout screens.

1.
Currently, if a mission is set as `scramble` then there is no visual way for the player to see that the Ship Selection and Weapon Loadout screens are locked, instead the player has to click on the buttons and hear the fail sounds or assess that the hover states are not triggering.

This PR adds a text line right below the words `Weapons Loadout` that states "Ships/Weapons Locked" (XSTR 749) if the mission is `scramble` thus the player can easily see this right away and not have to check the buttons on every mission.

2.
Currently there is a nice orange coloration of the player ship icon in the Ship Selection wing loadout. This immediately shows the player which ship is theirs, but this usefulness does not translate to the Weapon Loadout screen.  The player must select another ship, besides the player ship, to have the player ship show up as orange.

This PR adds a bool `always_highlight_ply` which is specifically for the weapon `draw_wing_block` function when called as as part of the weapon loadout routine.

Both PRs are tested and work as expected. I currently have these PRs on without a flag, but if folks really do not want the PRs or would prefer them to be behind a flag, then I'm happy to do that, too.

* separate PRs

Author: wookieejedi

code/missionui/missionshipchoice.cpp

@@ -1475,7 +1475,7 @@ void ship_select_do(float frametime)
 
 		draw_ship_icons();
 		for ( int i = 0; i < MAX_WING_BLOCKS; i++ ) {
-			draw_wing_block(i, Hot_ss_slot, -1, Selected_ss_class);
+			draw_wing_block(i, Hot_ss_slot, -1, Selected_ss_class, true, false);
 		}		
 	}
 
@@ -2142,7 +2142,7 @@ void pick_from_wing(int wb_num, int ws_num)
 //				hot_slot	=>		index of slot that mouse is over
 //				selected_slot	=>	index of slot that is selected
 //				class_select	=>	all ships of this class are drawn selected (send -1 to not use)
-void draw_wing_block(int wb_num, int hot_slot, int selected_slot, int class_select, bool ship_selection )
+void draw_wing_block(int wb_num, int hot_slot, int selected_slot, int class_select, bool ship_selection, bool always_highlight_ply )
 {
 	GR_DEBUG_SCOPE("Wing block");
 
@@ -2259,7 +2259,7 @@ void draw_wing_block(int wb_num, int hot_slot, int selected_slot, int class_sele
 					}
 				}
 
-				if ( ws->status & WING_SLOT_IS_PLAYER && (selected_slot != slot_index) )
+				if ( ws->status & WING_SLOT_IS_PLAYER && (always_highlight_ply || (selected_slot != slot_index)) )
 				{
 					if(icon->model_index == -1)
 						bitmap_to_draw = icon->icon_bmaps[ICON_FRAME_PLAYER];

code/missionui/missionshipchoice.h

@@ -82,7 +82,7 @@ typedef struct ss_wing_info {
 extern ss_wing_info Ss_wings_teams[MAX_TVT_TEAMS][MAX_WING_BLOCKS];
 extern ss_wing_info* Ss_wings;
 
-void draw_wing_block(int wb_num, int hot_slot, int selected_slot, int class_select, bool ship_selection = true);
+void draw_wing_block(int wb_num, int hot_slot, int selected_slot, int class_select, bool ship_selection = true, bool always_highlight_ply = false);
 void ship_select_init();
 void ship_select_do(float frametime);
 void ship_select_close();

code/missionui/missionweaponchoice.cpp

@@ -2836,7 +2836,7 @@ void weapon_select_do(float frametime)
 		wl_render_overhead_view(frametime);
 		wl_draw_ship_weapons(Selected_wl_slot);
 		for ( int i = 0; i < MAX_WING_BLOCKS; i++ ) {
-			draw_wing_block(i, Hot_wl_slot, Selected_wl_slot, -1, false);
+			draw_wing_block(i, Hot_wl_slot, Selected_wl_slot, -1, false, true);
 		}
 		common_render_selected_screen_button();
 	}