Created build.bat

Helper batch file for building the keyboard.

util/build.bat

@@ -0,0 +1,51 @@
+@echo off
+
+rem Use this batch file from within an IDE to automatically build your firmware.
+rem You can pass command-line arguments to indicate which keyboard and keymap to build.
+rem
+rem Usage:
+rem vscode-build.bat "Working directory" "Keyboard" "Keymap"
+rem
+rem Ex. vscode-build.bat C:\Projects\qmk_firmware Planck default
+
+SET ROOTDIR="%~dp0..\"
+
+rem Modify this to define your keyboard
+rem SET KEYBOARD="ergodox_ez"
+if [%1]==[] (
+    echo. Keyboard is undefined; defaulting to Planck
+    SET KEYBOARD="Planck"
+) ELSE (
+    SET KEYBOARD="%1"
+)
+
+rem Modify this line to adjust your keymap.
+rem SET KEYMAP="replicaJunction"
+if [%2]==[] (
+    echo. Keyboard is undefined; defaulting to default
+    SET KEYMAP="default"
+) ELSE (
+    SET KEYMAP="%2"
+)
+
+echo.
+echo. --------------
+echo. Build started.
+echo. --------------
+echo.
+echo. Working directory: %ROOTDIR%
+echo. Keyboard: %KEYBOARD%
+echo. Keymap: %KEYMAP%
+echo.
+echo.
+CD /D "%ROOTDIR%"
+echo. Cleaning build directory...
+make clean KEYBOARD=%KEYBOARD% KEYMAP=%KEYMAP%
+echo.
+echo. Making keyboard %KEYBOARD% with keymap %KEYMAP%
+make KEYBOARD=%KEYBOARD% KEYMAP=%KEYMAP%
+echo.
+echo. ----------------
+echo. Build completed.
+echo. ----------------
+exit /b