Fix missing submodules (#2074)

* add --recursive for missing submodules

tools/checkout-deps.ps1

@@ -44,7 +44,7 @@ Function Get-Repository
 
     If (-not (Test-Path $Name -PathType Container))
     {
-        & git clone $Repo -b $Branch $Name 2>&1 | Write-Host
+        & git clone --recursive $Repo -b $Branch $Name 2>&1 | Write-Host
         If ($Origin)
         {
             Set-Location $Name

tools/checkout-deps.sh

@@ -95,7 +95,7 @@ fi
 checkout ()
 {
   if [ ! -d "$name" ]; then
-    git clone $repo -b $branch $name
+    git clone --recursive $repo -b $branch $name
     if [ -n "$origin" ]; then
       cd $name
       git remote set-url origin $origin