2.2.4 Dear ImGui 1.91.6 + static link support

Hexa.NET.ImGui Changes

• Updated to Dear ImGui 1.91.6
• Fixed #31
• Added static link support.

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Forwarded from https://github.com/ocornut/imgui/releases/tag/v1.91.6 (removed @ to avoid spam)

Changes (since v1.91.5)

This is an unusual small release. It is mostly motivated by the fact that the Win32 backend in docking branch of v1.91.5 had a crash when running multiple program instances. Most of the work done this month is part of a larger feature I will talk about later :)

Breaking Changes:

• Backends: DX12: Changed ImGui_ImplDX12_Init() signature to take a ImGui_ImplDX12_InitInfo struct.
  • Using the new API, application is now required to pass function pointers to allocate/free SRV Descriptors.
  • We provide convenience legacy fields to pass a single descriptor, matching the old API, but upcoming features will want multiple.
  • Legacy ImGui_ImplDX12_Init() signature is still supported (will obsolete).
• Misc: changed CRC32 table from CRC32-adler to CRC32c polynomial in order to be compatible with the result of SSE 4.2 instructions. (#8169, #4933) [Teselka]
  • As a result, some .ini data may be partially lost when storing checksums (docking and tables information particularly).
  • Because some users have crafted and storing .ini data as a way to workaround limitations of the docking API, we are providing a #define IMGUI_USE_LEGACY_CRC32_ADLER compile-time option to keep using old CRC32 tables if you cannot afford invalidating old .ini data.

Other changes:

• InputText: added ImGuiInputTextFlags_ElideLeft to elide left side and ensure right side of contents is visible when whole text is not fitting (useful for paths/filenames). (#1442, #1440, #4391, #7208, #8216) [kucoman, ocornut]
• InputText: reactivating last activated InputText() doesn't restore horizontal scrolling (which was disabled during deactivation anyway).
• Error Handling: fixed cases where recoverable error handling would crash when processing errors outside of the NewFrame()..EndFrame() scope. (#1651)
• Tables: fixed SetNextWindowScroll() value being ignored by BeginTable() during the first frame or when scrolling flags have changed. (#8196)
• Misc: changed embedded ProggyClean encoding to save a bit of binary space (~12kb to 9.5kb).
• Misc: added IMGUI_DISABLE_DEFAULT_FONT to strip embedded font from binary. (#8161) [demonese]
• Demo: example tree used by Property Editor & Selection demos properly freed on application closure. (#8158) [Legulysse]
• Fonts: fixed AddCustomRect() not being packed with TexGlyphPadding + not accounted for surface area used to determine best-guess texture size. (#8107) [YarikTH, ocornut]
• Misc: use SSE 4.2 crc32 instructions when available. (#8169, #4933) [Teselka]
• Tools: binary_to_compressed_c: added -u8/-u32/-base85 export options.
• Backends: DirectX12: Let user specifies the DepthStencilView format by setting ImGui_ImplDX12_InitInfo::DSVFormat. (#8217) [bmarques1995]
• Backends: Vulkan: Make user-provided descriptor pool optional. As a convenience, when setting init_info->DescriptorPoolSize then the backend will create and manage one itself. (#8172, #4867) [zeux]
• Examples: Win32+DX12: Using a basic free-list allocator to manage multiple SRV descriptors.

Changes from 1.91.5 to 1.91.6 in the Docking branch:

• Backends: Win32: Fixed a crash/regression in 1.91.5 when running two processes with multi-viewports (was using GetProp() to query property which could have belonged to another process). (#8162, #8069) [sammyfreg, ocornut]
• Docking: Added an assert to clarify that ImGuiDockNodeFlags_CentralNode flag (from internals) does not need to be passed to DockSpace(), as it causes general havoc. (#8145)