[Add] Suspend/Resume Canvas Zoom by desactivating Navigation

[LittleCoinCoin]

Major:

• Using NavigateAction::m_IsActive boolean (m_NavigateAction of the EditorContext)
• Added methods To gloabal API to directly set it to true (ResumeNavigation) or false (SuspendNavigation).
• As a result, we can call the couple Suspend/Resume to momentarily deactivate the canvas zoom.

Use Case Example

When hovering over a ListBox (this is a custom to my project), I can call ax::NodeEditor::SuspendNavigation() before a portion of code that wants to use the ImGui::GetIO().MouseWheel input. Then, I call ax::NodeEditor::ResumeNavigation().

Pseudo-code

if (isListBoxHovered())
{
    ax::NodeEditor::SuspendNavigation();

    //handle list box scrolling

    ax::NodeEditor::ResumeNavigation();
}