Provisioning: Add 64 bit Mingw to coin as packaging target

Change will provision DirectX SDK with enabler DotNetFramework also, so
that configure for MinGW will detect ANGLE correctly. The DirectX
headers and libs will be in two location, while those are installed
with MSVC also.

Task-number: QTBUG-35288
Change-Id: I04ca71a73b22cd4eb27987a368cd9ede03b0e437
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
Reviewed-by: Tony Sarajärvi <tony.sarajarvi@qt.io>

coin/provisioning/qtci-windows-10-x86_64/02-enable-dotnet-framework.ps1

@@ -0,0 +1,22 @@
+# The DirectX SDK installer requires .Net framework 3.5 which isn't installed
+# by default
+
+$netFeature = "NetFx3"
+try {
+    $netFeatureState = (Get-WindowsOptionalFeature -Online -FeatureName "$netFeature").State
+    if ($netFeatureState -eq "Enabled") {
+        Write-Host ".Net Framework is already installed"
+        exit 0
+    }
+} catch {
+    Write-Host "Could not find .Net Framework Windows feature."
+    exit 1
+}
+
+Write-Host "Installing .Net Framework client"
+try {
+    Enable-WindowsOptionalFeature -Online -FeatureName "$netFeature" -All -NoRestart
+} catch {
+    Write-Host "Could not install .Net framework"
+    exit 1
+}

coin/provisioning/qtci-windows-10-x86_64/09-install-mingw730_64.ps1

@@ -0,0 +1,9 @@
+. "$PSScriptRoot\..\common\windows\install-mingw.ps1"
+
+# This script will install 64-bit MinGW 7.3.0
+
+$release = "x86_64-7.3.0-release-posix-seh-rt_v5-rev0"
+$sha1    = "0fce15036400568babd10d65b247e9576515da2c"
+
+InstallMinGW $release $sha1
+

coin/provisioning/qtci-windows-10-x86_64/10-dxsdk.ps1

@@ -0,0 +1 @@
+. "$PSScriptRoot\..\common\windows\dxsdk.ps1"