[common] Switch to boost::unordered_flat containers (#4326)

Replaces all instances of ankerl's unordered map/set with boost's
`unordered_flat_*` classes. This uses std::hash since boost::hash is
actually a lot slower.

Also adds an abstraction layer in `Common` so future changes are quicker
and easier.

Other implementation details:
- ankerl provided hash specializations for tuple and pair, so those were
  ported here
- std::erase_if doesn't work on boost, so just used the ADL'd erase_if

This should be about equal or superior performance as unordered_dense for everything except iteration.

Signed-off-by: crueter <crueter@eden-emu.dev>

- [x] I have read and followed the [Contribution Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/CONTRIBUTING.md#code-contributions).
- [x] I have read and followed the [AI Policy](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/AI.md)
- [x] I have read and followed the [Coding Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/Coding.md) to the best of my ability.

-------------------

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4326
Reviewed-by: Lizzie and Samuel <lizzie@eden-emu.dev>
Reviewed-by: MaranBr <maranbr@eden-emu.dev>

src/video_core/renderer_vulkan/vk_pipeline_cache.h

@@ -13,7 +13,7 @@
 #include <filesystem>
 #include <memory>
 #include <type_traits>
-#include <ankerl/unordered_dense.h>
+#include "common/container/unordered_map.h"
 #include <vector>
 
 #include "common/common_types.h"
@@ -163,8 +163,8 @@ private:
     GraphicsPipelineCacheKey graphics_key{};
     GraphicsPipeline* current_pipeline{};
 
-    ankerl::unordered_dense::map<ComputePipelineCacheKey, std::unique_ptr<ComputePipeline>> compute_cache;
-    ankerl::unordered_dense::map<GraphicsPipelineCacheKey, std::unique_ptr<GraphicsPipeline>> graphics_cache;
+    ::Common::unordered_map<ComputePipelineCacheKey, std::unique_ptr<ComputePipeline>> compute_cache;
+    ::Common::unordered_map<GraphicsPipelineCacheKey, std::unique_ptr<GraphicsPipeline>> graphics_cache;
 
     ShaderPools main_pools;
 

src/video_core/renderer_vulkan/vk_query_cache.cpp

@@ -10,7 +10,7 @@
 #include <memory>
 #include <span>
 #include <type_traits>
-#include <ankerl/unordered_dense.h>
+#include "common/container/unordered_map.h"
 #include <utility>
 #include <vector>
 #include "video_core/renderer_vulkan/vk_texture_cache.h"
@@ -246,7 +246,7 @@ public:
         sync_values_stash.emplace_back();
         std::vector<HostSyncValues>* sync_values = &sync_values_stash.back();
         sync_values->reserve(num_slots_used);
-        ankerl::unordered_dense::map<size_t, std::pair<size_t, size_t>> offsets;
+        ::Common::unordered_map<size_t, std::pair<size_t, size_t>> offsets;
         resolve_buffers.clear();
         size_t resolve_buffer_index = ObtainBuffer<true>(num_slots_used);
         resolve_buffers.push_back(resolve_buffer_index);
@@ -428,7 +428,7 @@ private:
     template <bool is_ordered, typename Func>
     void ApplyBanksWideOp(std::vector<size_t>& queries, Func&& func) {
         std::conditional_t<is_ordered, std::map<size_t, std::pair<size_t, size_t>>,
-                           ankerl::unordered_dense::map<size_t, std::pair<size_t, size_t>>>
+                           ::Common::unordered_map<size_t, std::pair<size_t, size_t>>>
             indexer;
         for (auto q : queries) {
             auto* query = GetQuery(q);
@@ -757,7 +757,7 @@ public:
 
     void SyncWrites() override {
         CloseCounter();
-        ankerl::unordered_dense::map<size_t, std::vector<HostSyncValues>> sync_values_stash;
+        ::Common::unordered_map<size_t, std::vector<HostSyncValues>> sync_values_stash;
         for (auto q : pending_sync) {
             auto* query = GetQuery(q);
             if (True(query->flags & VideoCommon::QueryFlagBits::IsRewritten)) {

src/video_core/renderer_vulkan/vk_render_pass_cache.cpp

@@ -4,7 +4,7 @@
 // SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-#include <ankerl/unordered_dense.h>
+#include "common/container/unordered_map.h"
 
 #include <boost/container/static_vector.hpp>
 

src/video_core/renderer_vulkan/vk_render_pass_cache.h

@@ -7,7 +7,7 @@
 #pragma once
 
 #include <mutex>
-#include <ankerl/unordered_dense.h>
+#include "common/container/unordered_map.h"
 
 #include "common/container_hash.h"
 #include "video_core/surface.h"
@@ -75,7 +75,7 @@ public:
 
 private:
     const Device* device{};
-    ankerl::unordered_dense::map<RenderPassKey, vk::RenderPass> cache;
+    ::Common::unordered_map<RenderPassKey, vk::RenderPass> cache;
     std::mutex mutex;
 };
 

src/video_core/renderer_vulkan/vk_texture_cache.h

@@ -186,7 +186,7 @@ public:
     };
 
     std::vector<MsaaScratchImage> msaa_scratch_images;
-    ankerl::unordered_dense::map<VkImage, ResolveShadow> resolve_shadows;
+    ::Common::unordered_map<VkImage, ResolveShadow> resolve_shadows;
     std::vector<std::pair<u64, ResolveShadow>> pending_resolve_shadows;
 };