Add implot-sys and implot3d-sys

.gitmodules

@@ -25,3 +25,9 @@
 [submodule "cpp-httplib-sys/lib/cpp-httplib"]
 	path = cpp-httplib-sys/lib/cpp-httplib
 	url = https://github.com/yhirose/cpp-httplib
+[submodule "implot-sys/lib/implot"]
+	path = implot-sys/lib/implot
+	url = https://github.com/epezent/implot
+[submodule "implot3d-sys/lib/implot3d"]
+	path = implot3d-sys/lib/implot3d
+	url = https://github.com/brenocq/implot3d

implot-sys/CMakeLists.txt

@@ -0,0 +1,23 @@
+cmake_minimum_required(VERSION 3.28)
+
+project(implot-sys LANGUAGES CXX)
+
+set(IMGUI_SYS_ROOT
+    ""
+    CACHE STRING "Directory of imgui-sys install")
+if(NOT IMGUI_SYS_ROOT)
+  message(FATAL_ERROR "Must specify -DIMGUI_SYS_ROOT=...")
+endif()
+
+add_library(implot STATIC lib/implot/implot.cpp lib/implot/implot_demo.cpp
+                          lib/implot/implot_items.cpp)
+target_include_directories(implot PUBLIC "${IMGUI_SYS_ROOT}/include")
+target_link_directories(implot PUBLIC "${IMGUI_SYS_ROOT}/lib")
+target_link_libraries(implot PUBLIC imgui)
+
+install(
+  TARGETS implot
+  LIBRARY DESTINATION lib
+  ARCHIVE DESTINATION lib)
+install(FILES lib/implot/implot.h lib/implot/implot_internal.h
+        DESTINATION include/)

implot-sys/README.md

@@ -0,0 +1,20 @@
+# implot-sys
+[![Clojars Project](https://img.shields.io/clojars/v/org.jank-lang.commons/implot-sys.svg)](https://releases.clojars.org/org.jank-lang.commons/implot-sys)
+
+Raw package for implot, a Dear ImGui extension.
+
+## Usage
+Add this project to your Leiningen `:dependencies` vector:
+
+```clojure
+[org.jank-lang.commons/implot-sys "0.1-SNAPSHOT"]
+```
+
+## Example
+You can find an example project [here](./example). You're welcome to copy this
+to get started! To run the example project, use Leiningen:
+
+```bash
+cd example
+lein run
+```