win: add build helpers

Author: zpl-zak

misc/win/build_example.bat

@@ -0,0 +1,8 @@
+@echo off
+
+call %~dp0%\setup_cl_generic.bat amd64
+
+call %~dp0\build_generic.bat "code/apps/examples/%1.c" "%1" "" "" "gdi32.lib user32.lib opengl32.lib" ""
+
+IF NOT %ERRORLEVEL% == 0 (EXIT /b -1)
+

misc/win/run_example.bat

@@ -0,0 +1,7 @@
+@echo off
+
+call %~dp0\build_example.bat %1
+IF NOT %ERRORLEVEL% == 0 (EXIT /b -1)
+for /f "tokens=1,* delims= " %%a in ("%*") do set REST=%%b
+build\%1.exe %REST%
+