first commit with fxSDK CMake-based template

.gitignore

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+__pycache__/
+/build-fx
+/build-cg
+/assets-fx/xcf

CMakeLists.txt

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+# Configure with [fxsdk build-fx] or [fxsdk build-cg], which provide the
+# toolchain file and module path of the fxSDK
+
+cmake_minimum_required(VERSION 3.18)
+project(MyAddin)
+
+include(GenerateG1A)
+include(GenerateG3A)
+include(Fxconv)
+find_package(Gint 2.1 REQUIRED)
+
+set(SOURCES
+  src/main.c
+  # ...
+)
+# Shared assets, fx-9860G-only assets and fx-CG-50-only assets
+set(ASSETS
+  # ...
+)
+set(ASSETS_fx
+  assets-fx/example.png
+  # ...
+)
+set(ASSETS_cg
+  assets-cg/example.png
+  # ...
+)
+
+fxconv_declare_assets(${ASSETS} ${ASSETS_fx} ${ASSETS_cg} WITH_METADATA)
+
+add_executable(myaddin ${SOURCES} ${ASSETS} ${ASSETS_${FXSDK_PLATFORM}})
+target_compile_options(myaddin PRIVATE -Wall -Wextra -Os)
+target_link_libraries(myaddin Gint::Gint)
+
+if("${FXSDK_PLATFORM_LONG}" STREQUAL fx9860G)
+  generate_g1a(TARGET myaddin OUTPUT "MyAddin.g1a"
+    NAME "MyAddin" ICON assets-fx/icon.png)
+elseif("${FXSDK_PLATFORM_LONG}" STREQUAL fxCG50)
+  generate_g3a(TARGET myaddin OUTPUT "MyAddin.g3a"
+    NAME "MyAddin" ICONS assets-cg/icon-uns.png assets-cg/icon-sel.png)
+endif()

assets-fx/fxconv-metadata.txt

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+example.png:
+  type: bopti-image
+  name: img_example

src/main.c

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+#include <gint/display.h>
+#include <gint/keyboard.h>
+
+int main(void)
+{
+	dclear(C_WHITE);
+	dtext(1, 1, C_BLACK, "Sample fxSDK add-in.");
+	dupdate();
+
+	getkey();
+	return 1;
+}