loveplus: enable cam access (#318)

## Link to GitHub Issue, if one exists
#316 
(this does not fix the issue!)

## Description of change
Add an option to omit `-noCamera` option. Doing so allows the game to
boot and search for a compatible camera using KS API, but will likely
fail since we don't know what cameras are compatible. You end up with a
camera error during boot, which can be ignored by flipping a switch in
the test menu to disable the camera.

No hooks are currently done to make the camera work!

## Testing
Tested to see that turning this on triggers the camera error. No known
camera at the moment.

src/spice2x/games/loveplus/loveplus.cpp

@@ -13,6 +13,8 @@
 
 namespace games::loveplus {
 
+    bool CAMERA_ENABLE = false;
+
     // touch stuff
     static bool TOUCH_ENABLE = false;
     static bool TOUCH_ATTACHED = false;
@@ -117,9 +119,13 @@ namespace games::loveplus {
     }
 
     static LPSTR __stdcall GetCommandLineA_hook() {
-        static std::string lp_args = "-win -noCamera -noWatchDog -noIOError -noIrda -notarget";
-
-        return lp_args.data();
+        static std::string lp_args = "-win -noWatchDog -noIOError -noIrda -notarget";
+        static std::string lp_args_nocamera = lp_args + " -noCamera";
+        if (CAMERA_ENABLE) {
+            return lp_args.data();
+        } else {
+            return lp_args_nocamera.data();
+        }
     }
 
     LovePlusGame::LovePlusGame() : Game("LovePlus") {

src/spice2x/games/loveplus/loveplus.h

@@ -4,6 +4,8 @@
 
 namespace games::loveplus {
 
+    extern bool CAMERA_ENABLE;
+
     // touch stuff
     void touch_update();