Add Dear ImPlot Library

Externals/implot/CMakeLists.txt

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+if(NOT MSVC)
+  set(CMAKE_CXX_STANDARD 20)
+  set(CMAKE_CXX_STANDARD_REQUIRED ON)
+  set(CMAKE_CXX_EXTENSIONS OFF)
+endif()
+
+set(SRCS
+  implot/implot.cpp
+  implot/implot_items.cpp
+  implot/implot_demo.cpp
+)
+
+add_library(implot STATIC ${SRCS})
+dolphin_disable_warnings_msvc(implot)
+target_include_directories(implot
+  PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}/implot"
+  PRIVATE imgui
+)
+
+target_link_libraries(implot
+  PRIVATE imgui
+  PRIVATE fmt::fmt
+)

Externals/implot/LICENSE

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+MIT License
+
+Copyright (c) 2020 Evan Pezent
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

Externals/implot/exports.props

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+<?xml version="1.0" encoding="utf-8"?>
+<Project>
+    <ItemDefinitionGroup>
+        <ClCompile>
+            <AdditionalIncludeDirectories>$(ExternalsDir)imgui;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+            <AdditionalIncludeDirectories>$(ExternalsDir)implot;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+        </ClCompile>
+    </ItemDefinitionGroup>
+    <ItemGroup>
+        <ProjectReference Include="$(ExternalsDir)implot\implot.vcxproj">
+            <Project>{A608225E-AE0A-4D1A-9B55-97F57C862391}</Project>
+        </ProjectReference>
+    </ItemGroup>
+</Project>

Externals/implot/implot.vcxproj

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+<?xml version="1.0" encoding="utf-8"?>
+<Project>
+    <Import Project="..\..\Source\VSProps\Base.Macros.props" />
+    <Import Project="$(VSPropsDir)Base.Targets.props" />
+    <PropertyGroup Label="Globals">
+        <ProjectGuid>{A608225E-AE0A-4D1A-9B55-97F57C862391}</ProjectGuid>
+    </PropertyGroup>
+    <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+    <Import Project="$(VSPropsDir)Configuration.StaticLibrary.props" />
+    <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+    <ImportGroup Label="ExtensionSettings" />
+    <ImportGroup Label="PropertySheets">
+        <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+        <Import Project="$(VSPropsDir)Base.props" />
+        <Import Project="$(VSPropsDir)ClDisableAllWarnings.props" />
+    </ImportGroup>
+    <PropertyGroup Label="UserMacros" />
+    <ItemDefinitionGroup>
+        <ClCompile>
+            <!--IM_ASSERT is defined as Dolphin's ASSERT() :( (DolphinLib circular dependency)-->
+            <AdditionalIncludeDirectories>$(CoreDir);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+        </ClCompile>
+    </ItemDefinitionGroup>
+    <ItemGroup>
+        <ClCompile Include="implot/implot.cpp" />
+        <ClCompile Include="implot/implot_items.cpp" />
+        <ClCompile Include="implot/implot_demo.cpp" />
+    </ItemGroup>
+    <ItemGroup>
+        <ClInclude Include="implot/implot.h" />
+        <ClInclude Include="implot/implot_internal.h" />
+    </ItemGroup>
+    <Import Project="$(ExternalsDir)imgui\exports.props" />
+    <Import Project="$(ExternalsDir)fmt\exports.props" />
+    <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+    <ImportGroup Label="ExtensionTargets">
+    </ImportGroup>
+</Project>