* wip2
* Implement AutoUtf8Buffer
* reformat
* Work on manual bindings
* restructure
* Name scripts properly
* Update utility functions to use ImU8String
* add overloads
* Add more overloads
* Use ImGuiWindow from gen, support AddCallback
* Use LibraryImport for custom ImGuiNative functinos
* Make manual overloads for string-returning functinos
* Make all overloads with self as its first parameter extension methods
* Fix overload resolution by removing unnecessary
* in => scoped in
* Fix compilation errors
* Switch INotificationManager and ITitleScreenMenu to use ISharedImmediateTexture #1879
* Remove SetIconTexture
Remove some remarks that no longer apply
* Cleanup StyleCop warnings
* Add IconTexture/Wrap to INotification (#1738)
Notification record and IActiveNotification interface now supports
setting or updating the texture wraps being used, and SetIconTexture has
gotten more overloads to support leaveOpen mechanism that can commonly
be found with Stream wrappers.
ImGui widget is updated to support testing setting "leaveOpen" and
updating "IconTexture" property via setter, making it possible to check
whether IDTW.Dispose is being called under given conditions.
Some changes to doccomments are made.
* typo
