[Installer] Fix the Windows product display name and icon

The name was not set at all and was falling back to the fullname being swift.
Instead set it explicitly to fullname including version and architecture.
The productDisplayIcon is evaluated at installer runtime and needs to be
set to a installed icon path.
The installer icon itself was to big (> 100 kb) and got unnecessary sizes
removed.

ref T344

installer/installbuilder/project.xml

@@ -163,7 +163,8 @@
     <osxApplicationBundleIdentifier>org.swift-project.macinstaller</osxApplicationBundleIdentifier>
     <osxUninstallerApplicationBundleIcon>../images/swiftinstaller.icns</osxUninstallerApplicationBundleIcon>
     <outputDirectory>.</outputDirectory>
-    <productDisplayIcon>../images/swiftinstaller.ico</productDisplayIcon>
+    <productDisplayIcon>${installdir}/share/icons/swiftinstaller.ico</productDisplayIcon>
+    <productDisplayName>${product_fullname} ${project.version} ${architecture}bit</productDisplayName>
     <requestedExecutionLevel>highestAvailable</requestedExecutionLevel>
     <saveRelativePaths>1</saveRelativePaths>
     <startMenuGroupName>swift ${project.version} ${architecture}bit</startMenuGroupName>

installer/installbuilder/swift-pilotclient.xml

@@ -105,6 +105,17 @@ This installs the binaries to run all swift applications.</detailedDescription>
                 </distributionFile>
             </distributionFileList>
         </folder>
+        <folder>
+            <description>icons</description>
+            <destination>${installdir}/share/icons</destination>
+            <name>icons</name>
+            <platforms>windows</platforms>
+            <distributionFileList>
+                <distributionFile>
+                    <origin>../images/swiftinstaller.ico</origin>
+                </distributionFile>
+            </distributionFileList>
+        </folder>
     </folderList>
     <startMenuShortcutList>
         <startMenuShortcut>