[vulkan] Removal of QCOM sampler limiters + CustomBorderColor and ColorBorderSwizzle adjustments (#4301)

This PR removes the artificial limit added for QCOM drivers based on a sampler budget limit (based on #3280 work), removes the ban on CustomBorderColor/BorderColorSwizzle for also QCOM driver, reduce the amount of combination required to created a sampler with custom border color/ color border swizzle; adds cases on R16 formats not able to swizzle on BGR565 formats; degrades samplers and color combinations when there's no color border swizzle available; fixes the srgb (LUT) values from legacy and now all the color variations are cached in the same key, instead of having 7 different handlers for them. In resume, rather than performance (due to the reduced amount of process on duplicated/ synced code on pipeline/texture cache), it's a graphica accuracy work that will improve image quality at the cost of almost 0 performance hit, rather than certain hitch if the color combination wasn't cached before. This applies to all platform.

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4301
Reviewed-by: Samuel <lizzie@eden-emu.dev>
Reviewed-by: MaranBr <maranbr@eden-emu.dev>

src/video_core/textures/texture.h

@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
@@ -378,6 +381,8 @@ struct TSCEntry {
 
     std::array<float, 4> BorderColor() const noexcept;
 
+    std::array<float, 4> SrgbBorderColor() const noexcept;
+
     float MaxAnisotropy() const noexcept;
 
     float MinLod() const {