Add submodule init and build script

build/init.bat

@@ -0,0 +1,22 @@
+@echo off
+
+SET root=%cd%
+
+echo "Syncing submodules"
+git submodule sync
+git submodule update --init --remote
+echo "Submodules up to date"
+
+FOR /F "delims=" %%a IN ('DIR "../dependencies" /A:d /B') DO (
+    echo Handling %%a
+    cd "../dependencies/%%a/build"
+    echo %cd%
+    IF EXIST init.bat  (
+        echo "found init.bat"
+	call init
+    )    
+    cd %root%
+)
+
+cd ../
+dotnet build