Adds support for provisioning QZ Tray settings at install time.

Closes #885, #517

To try:

ant -Dprovision.file=./test/qz/installer/provision/resources/provision.json nsis

TODO:

• Windows uninstallers show certificate popups (via type: 'remover')
  • One potential workaround is to invoke the uninstall commands manually.
  • EDIT: I think the installer is actually crashing.
• Linux scripts in /opt/qz-tray/provision/ are only executable as root
• Architecture support (e.g. { arch: 'aarch64' })

WISHLIST:

• Is it possible to provide an installer without the "demo" code included
• Port 8182 is open and provides unauthenticated access to the services, can this be closed?
  • Need help from @akberenz, see

    tray/src/qz/ws/PrintSocketServer.java

    Lines 79 to 81 in d617d35

    	if(httpsOnly) {
    	// TODO: Help! @akberenz, how do we use secure only?
    	}

• Is it possible to block all connections except those that come with the certificate? Or some other way to prevent unauthenticated access. Related, HTTP Error Invalid SNI #1214, Fixed when System properties to harden file reading/writing, http behavior #1213 is merged.
• Is it possible to prevent localhost connections? Only if the 2nd and 3rd options are toggled.

The main purpose of this is to add the following to Company Branded builds:

• Custom install scripts
• Custom startup scripts
• Custom Installers (e.g. drivers)
• Entries to qz-tray.properties
• Entries to prefs.properties

High-Level:

• A provision file that references the same resource shouldn't make copies:
• Ability to automatically remove non-branded builds
• Check for and invoke provision file at install time and at runtime
  • Handle phase: install when installer is invoked
  • Handle phase: startup when software is started
• Ensure provision directory is bundled with all Desktop installers
• Document command line flags for preparing the provisioning steps
  • Bundle certs or script files into a predictable location
  • Construct the provisioning file as a resource readable at both install time and runtime
• Prepare common provisioning examples

Bundle:

• Bundle pre-allowed certificate files
  • Automatically add CERT provisioning step to provision.json
• Bundle startup scripts and post-install scripts for Company Branded: Add post-install scripting capabilities #885
  • Automatically add SCRIPT provisioning step to provision.json
• Bundle advanced qz-tray.properties settings
  • Automatically add PROPERTY provisioning step to provision.json
• Bundle advanced prefs.properties settings
  • Automatically add PREFERENCE provisioning step to provision.json
• Bundle 3rd-party installers (e.g. drivers, etc)
  • Automatically add INSTALL provisioning step to provision.json
  • Sane handling of multiple architectures (Company Branded portal)

Deploy:

• Deploy pre-allowed certificate files
• Deploy startup scripts and post-install scripts for Company Branded: Add post-install scripting capabilities #885
• Deploy advanced qz-tray.properties settings
• Deploy advanced prefs.properties settings
• Deploy 3rd-party installers (e.g. drivers, etc)

Desired usage:

ant -Dprovision.file=provision.json  makeself

One-off provisioning command:

java -jar out/dist/qz-tray.jar provision \
  --description "Epson TM-T88VI driver" \
  --type software \
  --phase install \
  --os mac \
  --data ~/Downloads/TMPrinterInstaller.pkg

### OR ###

java -jar out/dist/qz-tray.jar provision \
  --json provision.json

Sample provisioning file:

[
    {
        "description": "powershell script'",
        "type": "script",
        "os": "windows",
        "phase": "install",
        "data": "script1.ps1"
    },
    {
        "description": "bash script",
        "type": "script",
        "os": "linux|mac",
        "phase": "install",
        "data": "script2"
    },
    {
        "description": "certificate install",
        "type": "cert",
        "os": "*",
        "data": "cert1.crt"
    },
    {
        "description": "property install",
        "type": "property",
        "os": "*",
        "data": "log.size=2097152"
    },
    {
        "description": "pref install",
        "type": "preference",
        "os": "*",
        "data": "tray.notifications=true"
    },
    {
        "description": "qz remover",
        "type": "remover",
        "os": "*",
        "phase": "install",
        "data": "Cherry Connect,cc-util,cc"
    }
]