[FIX] : fix some warnings

[UPD] : update of Readme copy from Master

Update ImGuiFileDialog.h

[RFR] : refactor

[UPD] : Grid mode is disabled for the moment, because todo

[UPD] : update for imgui 1.84.2

[UPD] : udpate of ImGuiFileDialog

[FIX] : the commit for v0.5.3 was wrong. twit and release deleted for…

… this reason. im tired haha. i update the file in two epo at same time. this and in a soft who is using it :) but commited only this repo :)

[VER] : IMGUIFILEDIALOG_VERSION passed to v0.5.3.1

ImGuiFileDialog 0.5.2

fixed for last ImGui 1.79
fixed aiekick#33
some refactoring too
obsolete imgui function disabled by default in sample app

Merge branch 'master' of https://github.com/aiekick/ImGuiFileDialog