Merge branch 'master' into docking + update for IMGUI_DEBUG_LOG calls.

# Conflicts:
#	backends/imgui_impl_dx12.cpp
#	imgui.cpp
#	imgui_internal.h

docs/CHANGELOG.txt

@@ -151,6 +151,7 @@ Other Changes:
 - Nav: Fixed nav movement in a scope with only one disabled item from focusing the disabled item. (#5189)
 - Nav: Fixed issues with nav request being transferred to another window when calling SetKeyboardFocusHere()
   and simultaneous changing window focus. (#4449)
+- Nav: Changed SetKeyboardFocusHere() to not behave if a drag or window moving is in progress.
 - IsItemHovered(): added ImGuiHoveredFlags_NoNavOverride to disable the behavior where the
   return value is overriden by focus when gamepad/keyboard navigation is active.
 - InputText: Fixed pressing Tab emitting two tabs characters because of dual Keys/Chars events being
@@ -174,10 +175,13 @@ Other Changes:
   from the menu-bar, avoiding  accidental hovering from one to the other. (#3496, #4797) [@rokups]
 - Stack Tool: Added option to copy item path to clipboard. (#4631)
 - Settings: Fixed out-of-bounds read when .ini file on disk is empty. (#5351) [@quantum5]
+- Settings: Fixed some SetNextWindowPos/SetNextWindowSize API calls not marking settings as dirty.
 - DrawList: Fixed PathArcTo() emitting terminating vertices too close to arc vertices. (#4993) [@thedmd]
 - DrawList: Fixed texture-based anti-aliasing path with RGBA textures (#5132, #3245) [@cfillion]
 - DrawList: Fixed divide-by-zero or glitches with Radius/Rounding values close to zero. (#5249, #5293, #3491)
 - DrawList: Circle with a radius smaller than 0.5f won't appear, to be consistent with other primitives. [@thedmd]
+- Debug: Added ShowDebugLogWindow() showing an opt-in synthetic log of principal events (focus, popup,
+  active id changes) helping to diagnose issues.
 - Debug: Added DebugTextEncoding() function to facilitate diagnosing issues when not sure about whether
   you have a UTF-8 text encoding issue or a font loading issue. [@LaMarche05, @ocornut]
 - Demo: Add better demo of how to use SetNextFrameWantCaptureMouse()/SetNextFrameWantCaptureKeyboard().

docs/TODO.txt

@@ -113,6 +113,8 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
  - layout: (R&D) local multi-pass layout mode.
  - layout: (R&D) bind authored layout data (created by an off-line tool), items fetch their pos/size at submission, self-optimize data structures to stable linear access.
 
+ - tables: see https://github.com/ocornut/imgui/issues/2957#issuecomment-569726095
+
  - group: BeginGroup() needs a border option. (~#1496)
  - group: IsHovered() after EndGroup() covers whole AABB rather than the intersection of individual items. Is that desirable?
  - group: merge deactivation/activation within same group (fwd WasEdited flag). (#2550)