Ports: Added a chester port, a very simple GameBoy emulator.

Ports/chester/package.sh

@@ -0,0 +1,16 @@
+#!/usr/bin/env -S bash ../.port_include.sh
+port=chester
+useconfigure=true
+version=git
+depends="SDL2"
+workdir=chester-public
+configopts="-DCMAKE_TOOLCHAIN_FILE=$SERENITY_ROOT/Toolchain/CMakeToolchain.txt"
+files="https://github.com/veikkos/chester/archive/public.tar.gz chester.tar.gz"
+
+configure() {
+    run cmake $configopts
+}
+
+install() {
+    run cp bin/chester "${SERENITY_BUILD_DIR}/Root/bin"
+}

Ports/chester/patches/disable_Werror.patch

@@ -0,0 +1,13 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index a68cf88..c541385 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -22,7 +22,7 @@ endif ()
+ if (MSVC)
+     add_compile_options(/WX /wd4996)
+ else()
+-    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Werror")
++    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall")
+ endif()
+ 
+ add_subdirectory(src/lib)

Ports/chester/patches/disable_opengl.patch

@@ -0,0 +1,22 @@
+diff --git a/src/app/main.c b/src/app/main.c
+index cfd46b8..fc47912 100644
+--- a/src/app/main.c
++++ b/src/app/main.c
+@@ -47,7 +47,7 @@ bool init_graphics(gpu *g)
+                                               SDL_WINDOWPOS_UNDEFINED,
+                                               SDL_WINDOWPOS_UNDEFINED,
+                                               X_RES * WINDOW_SCALE, Y_RES * WINDOW_SCALE,
+-                                              SDL_WINDOW_OPENGL);
++                                              0);
+ 
+   if (sdl_graphics_ptr->window == NULL)
+     {
+@@ -58,7 +58,7 @@ bool init_graphics(gpu *g)
+ 
+   sdl_graphics_ptr->renderer = SDL_CreateRenderer(sdl_graphics_ptr->window,
+                                                   -1,
+-                                                  SDL_RENDERER_ACCELERATED);
++                                                  0);
+ 
+   if (sdl_graphics_ptr->renderer == NULL)
+     {

Ports/chester/patches/link_against_serenity_libs.patch

@@ -0,0 +1,10 @@
+diff --git a/src/app/CMakeLists.txt b/src/app/CMakeLists.txt
+index 95d0a51..be3e4db 100644
+--- a/src/app/CMakeLists.txt
++++ b/src/app/CMakeLists.txt
+@@ -13,4 +13,4 @@ endif()
+ find_package(SDL2 REQUIRED)
+ 
+ target_include_directories(chester PRIVATE ${SDL2_INCLUDE_DIR})
+-target_link_libraries(chester libchester ${SDL2_LIBRARY})
++target_link_libraries(chester libchester ${SDL2_LIBRARY} -lm -lgfx -lgui -lipc -lcore)