adding load/unload vars scripts

scripts/wpkg-clear-vars.cmd

+@echo off
+set WPKG_REG=HKLM\Software\WPKG\vars
+
+::WPKG variables defined in the registry as set per group policy.  Allows for per department variables to be defined
+for /f "tokens=1,2,3" %%a in ('reg query %WPKG_REG%') do (
+    if /i "%%b"=="reg_sz" set %%a=
+)
+
+set WPKG
+
+exit /b

scripts/wpkg-load-vars.cmd

+@echo off
+set WPKG_REG=HKLM\Software\WPKG\vars
+
+::WPKG variables defined in the registry as set per group policy.  Allows for per department variables to be defined
+for /f "tokens=1,2,3" %%a in ('reg query %WPKG_REG%') do (
+    if /i "%%b"=="reg_sz" set %%a=%%c
+)
+
+set WPKG
+
+exit /b