Use int for containers

[1vanK]

We use unsigned to store sizes and indices.
If user write size1 - size2, then overflow occurs if size1 < size2.
Those, sizes still need to be converted to int before being used in calculations, and user can easily forget about it

Cycle for (unsigned i = 9; i >= 0; i--) will never stop, because i >= 0 is always true.
User can workaround this in many ways, but why? Again, this is an additional source of error.

We disable warning to allow using cycles like

void Audio::UpdateInternal(float timeStep)
{
    URHO3D_PROFILE(UpdateAudio);

    // Update in reverse order, because sound sources might remove themselves
    for (u32 i = soundSources_.Size() - 1; i < soundSources_.Size(); --i)
    {

Scott Meyers recommeds use signed types in interfaces https://www.aristeia.com/Papers/C++ReportColumns/sep95.pdf

Bullet uses int for capacity & size & indices https://github.com/urho3d/Urho3D/blob/master/Source/ThirdParty/Bullet/src/LinearMath/btAlignedObjectArray.h

Related: #2939

[1vanK]

C# uses int for sizes https://docs.microsoft.com/en-us/dotnet/api/system.array.length?view=net-6.0

[1vanK]

Bjarne Stroustrup recommeds use signed types for sizes: https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2019/p1428r0.pdf

[github-actions]

Marking this stale since there has been no activity for 30 days.
It will be closed if there is no activity for another 15 days.