* ELECTRON-595: add sso checkbox in macOS installer
To enable easy configuration of SSO url, we add a checkbox that appends the SSO path on to the pod url in the installer
* ELECTRON-695: add support for sso checkbox for windows installers
* ELECTRON-505: enable / disable dev tools
implement logic to disable / enable dev tools with installer and configuration file
* ELECTRON-505: fix mac installer issues
* ELECTRON-505: add dev tools option to the windows installers
* ELECTRON-505: enable signing in the installers
* ELECTRON-505: update mac installer dev tools label text
* ELECTRON-505: remove dev tools from configuration windows
- update Mac installer design
- update installer as per latest design and content
- fix outlet connection issues in installer pane
- Redesign Symphony installer for Windows
- Fix spacing issue in installer
- Fix launch Symphony action
- add new design for mac installer
- Fix typo from Advanced Installer to Advance Settings
- Add test script to unpacked-mac
- added font family for macOS in intro page
- update font family
- implement permissions settings for electron
- add "Yes" / "No" as user visible text in the windows installer confirmation screen
- add "Yes" / "No" as user visible text in the windows installer for settings screen
- fix windows installer conflicts
- add logic to validate pod url strictly with https
- add logic to validate pod url strictly with https (windows)
- fix url replacement in the post install script and regular expression for validating url in the installer pane
* added background image to packages as provided by the design team
* electron-37: added a custom intro screen and changed the text in plugin as per design instructions
* electron-37: fixed issues w.r.t. installer pane not capturing the pod url and also added startup plist in the post install script
* electron-37: removed watch paths on launch agent
