[bin] use sys.exit + build meshroom_compute executable

* cx_Freeze removes builtin 'exit' function, use sys.exit in executables instead
* build: generate an executable for "meshroom_compute"

setup.py

@@ -113,6 +113,11 @@ meshroomPhotog = PlatformExecutable(
     "bin/meshroom_photogrammetry"
 )
 
+meshroomCompute = PlatformExecutable(
+    "bin/meshroom_compute"
+)
+
+
 setup(
     name="Meshroom",
     description="Meshroom",
@@ -127,5 +132,5 @@ setup(
     ],
     version=meshroom.__version__,
     options={"build_exe": build_exe_options},
-    executables=[meshroomExe, meshroomPhotog],
+    executables=[meshroomExe, meshroomPhotog, meshroomCompute],
 )