JBDS-4174 Install Vagrant and Virtualbox on macOS

Fix changes location set for install options. On windows
location stays the same, but on macOS both Vagrant and Virtualbox
adds soft  links into /usr/loca/bin directory.

Author: dgolovin

browser/model/vagrant.js

@@ -59,7 +59,11 @@ class VagrantInstall extends InstallableItem {
       this.validateVersion();
       done();
     }).catch((error) => {
-      this.addOption('install',this.version,path.join(this.installerDataSvc.installRoot,'vagrant'),true);
+      let installLocation = Platform.identify({
+        win32: ()=>path.join(this.installerDataSvc.installRoot,'vagrant'),
+        default: ()=>'/usr/local'
+      });
+      this.addOption('install',this.version,installLocation,true);
       done(error);
     });
   }

browser/model/virtualbox.js

@@ -223,7 +223,11 @@ class VirtualBoxInstallDarwin extends VirtualBoxInstall {
       this.validateVersion();
       done();
     }).catch(() => {
-      this.addOption('install',this.version,path.join(this.installerDataSvc.installRoot,'virtualbox'),true);
+      let installLocation = Platform.identify({
+        win32: ()=>path.join(this.installerDataSvc.installRoot,'vagrant'),
+        default: ()=>'/usr/local/bin'
+      });
+      this.addOption('install',this.version,installLocation,true);
       done();
     });
   }