feat: better cmake support (#21)

* feat: CMakeSettings.json

* chore: remove visual studio stuff
chore: move .clang-format to main directory

* feat: new file structure, easier to implement as a submodule within existing projects

* chore: we actually include some code now...

* chore: remove prebuilt libraries (oops)

* feat: new shader building script using cmake

* chore: add debug postfix specifier

* fix: forgot that windows builds use 4J_Render_PC for the render library

* fix: didn't add the output directory (where shaders are saved to) to the include directories of 4J_Render

impls/Windows_Libs/Render/CMakeLists.txt

@@ -0,0 +1,64 @@
+cmake_minimum_required(VERSION 3.25 FATAL_ERROR)
+
+project(4JLibs.Windows.Render LANGUAGES C CXX)
+
+include(shaders/build.cmake)
+
+set(LIBPNG_SOURCES
+    vendor/libpng/png.c
+    vendor/libpng/pngerror.c
+    vendor/libpng/pngget.c
+    vendor/libpng/pngmem.c
+    vendor/libpng/pngpread.c
+    vendor/libpng/pngread.c
+    vendor/libpng/pngrio.c
+    vendor/libpng/pngrtran.c
+    vendor/libpng/pngrutil.c
+    vendor/libpng/pngset.c
+    vendor/libpng/pngtest.c
+    vendor/libpng/pngtrans.c
+    vendor/libpng/pngwio.c
+    vendor/libpng/pngwrite.c
+    vendor/libpng/pngwtran.c
+    vendor/libpng/pngwutil.c
+)
+
+add_library(${PROJECT_NAME} STATIC
+    ${LIBPNG_SOURCES}
+    src/4J_Render.cpp
+    src/RendererCBuff.cpp
+    src/RendererCore.cpp
+    src/RendererMatrix.cpp
+    src/RendererState.cpp
+    src/RendererTexture.cpp
+    src/RendererVertex.cpp
+    src/stdafx.cpp
+    ${GENERATED_SHADER_HEADERS}
+)
+
+target_link_libraries(${PROJECT_NAME} PUBLIC 
+    4JLibs.Globals
+)
+
+target_include_directories(${PROJECT_NAME} PRIVATE
+    ${CMAKE_CURRENT_BINARY_DIR}/inc # binary output directory
+    ${CMAKE_CURRENT_SOURCE_DIR}/inc
+    ${CMAKE_CURRENT_SOURCE_DIR}/vendor
+    ${CMAKE_CURRENT_SOURCE_DIR}/vendor/zlib
+)
+
+target_precompile_headers(${PROJECT_NAME} PRIVATE
+    inc/stdafx.h
+)
+
+set_target_properties(${PROJECT_NAME} PROPERTIES
+	PREFIX ""
+    # this suffix here should only exist for windows builds, as for other platforms it's just "4J_Render"
+	OUTPUT_NAME "4J_Render_PC"
+    ARCHIVE_OUTPUT_DIRECTORY "${4JLibs_SOURCE_DIR}/libs"
+)
+
+set_source_files_properties(${LIBPNG_SOURCES} PROPERTIES
+    LANGUAGE C
+    SKIP_PRECOMPILE_HEADERS ON
+)