fixed assert crash on Imgui library when using xbox controller

newton-4.00/thirdParty/imgui/imgui.cpp

@@ -1127,7 +1127,9 @@ ImGuiIO::ImGuiIO()
     MouseDoubleClickTime = 0.30f;
     MouseDoubleClickMaxDist = 6.0f;
 #ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
-    for (int i = 0; i < ImGuiKey_COUNT; i++)
+    // newton dynamic modification: this chases on xbox controllers
+    //for (int i = 0; i < ImGuiKey_COUNT; i++)
+    for (int i = 0; i < ImGuiKey_COUNT-1; i++)
         KeyMap[i] = -1;
 #endif
     KeyRepeatDelay = 0.275f;
@@ -7979,7 +7981,9 @@ static void ImGui::ErrorCheckNewFrameSanityChecks()
     IM_ASSERT(g.Style.WindowMenuButtonPosition == ImGuiDir_None || g.Style.WindowMenuButtonPosition == ImGuiDir_Left || g.Style.WindowMenuButtonPosition == ImGuiDir_Right);
     IM_ASSERT(g.Style.ColorButtonPosition == ImGuiDir_Left || g.Style.ColorButtonPosition == ImGuiDir_Right);
 #ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
-    for (int n = ImGuiKey_NamedKey_BEGIN; n < ImGuiKey_COUNT; n++)
+    // newton dynamic modification, this chases on xbox controllers
+    //for (int n = ImGuiKey_NamedKey_BEGIN; n < ImGuiKey_COUNT; n++)
+    for (int n = ImGuiKey_NamedKey_BEGIN; n < ImGuiKey_COUNT - 1; n++)
         IM_ASSERT(g.IO.KeyMap[n] >= -1 && g.IO.KeyMap[n] < ImGuiKey_LegacyNativeKey_END && "io.KeyMap[] contains an out of bound value (need to be 0..511, or -1 for unmapped key)");
 
     // Check: required key mapping (we intentionally do NOT check all keys to not pressure user into setting up everything, but Space is required and was only added in 1.60 WIP)