Added auxiliary BAT script

build-win.bat

@@ -0,0 +1,20 @@
+@echo off
+
+set PSX_DIR=.
+set SDL2_DIR=SDL2-2.26.5\x86_64-w64-mingw32
+
+if not exist "bin" (
+    mkdir bin
+)
+
+gcc psx/*.c psx/dev/*.c frontend/*.c -o bin/psxe^
+    -L"%SDL2_DIR%/lib"^
+    -I"%SDL2_DIR%\include"^
+    -I"%SDL2_DIR%\include\SDL2"^
+    -I"%PSX_DIR%"^
+    -I"."^
+    -DOS_INFO="%OS_INFO%"^
+    -DREP_VERSION="%VERSION_TAG%"^
+    -DREP_COMMIT_HASH="%COMMIT_HASH%"^
+    -g -DLOG_USE_COLOR -lSDL2 -lSDL2main^
+    -Ofast -Wno-overflow -Wall -pedantic